I'll give a rundown of the parties position in the game:
The governing NDP is extremely unpopular in rural Alberta. You'll see them at around 15 - 20% percent in places like Strathmore, Olds, Sylvan Lake, or Drumheller. Their rural (or ruralish) MLA's and cabinet ministers are struggling - but areas like Vegreville or Wetaskiwin are still in fighting shape. Red Deer, Grande Prairie, and Lethbridge are in fairly dire straights. However, they are quite competitive in parts of Calgary, and still dominating Edmonton. They have surprisingly "bounced back" from diving poll numbers and intense opposition to the carbon tax, but there is really only so much they can do between now and the election to make it back up to 40% - and even if they can there is the specter of a unified conservative party.
The Wildrose Party (and Friends) worked their way into the Progressive Conservatives in 2017. This was orchestrated by the Federal Conservative machine for the most part, though there were definitely already many Progressive Conservative members who supported Stephen Harper. The result is the United Conservative Party, headed by former cabinet minister Jason Kenney. They have soared in public opinion, and received a lot of public attention during their unification. Calgary and some smaller cities are their main targets. They are the are the odds on favorite to win. However, the class of Progressive Conservative elite needed to be elbowed out for Kenney to have control of the PC's , and they ditched to the centrist Alberta Party.
THE ALBERTA PARTY
The Alberta Party succeeded in 2016 to fight a Wildrose takeover (envious of their name), but they were already pretty friendly with Progressive Conservative centrists. Former Edmonton mayor and PC cabinet minister Stephen Mandel has taken initiative to organize centrist action groups. He also organized many of his friends into elected positions during the Edmonton civic election. Naturally, he forced Greg Clark to resign his leadership, and Mandel easily became leader. The party is definitely now more infused with money and organizers, but he's brought the party more to the Right. He may spoil for the NDP or UCP - it depends on which way he splits the vote in Calgary - but he's looking at pushing the UCP to third in Edmonton.
The Liberals are in a tricky spot. They only still exist because Trudeau II is Prime Minister, and the Federal Liberals have a couple of seats in the cities. However, the federal government is even more unpopular than the NDP, and Trudeau II depends on Notley for his climate change plan to succeed. David Swann, their only legislator, is resigning, and their leader is fairly weak. They are unlikely to win a seat, or break 5%. They are not particularly distinguishable from the NDP, and Liberal voters who are not -party members are almost universally NDP. Their only winnable seats are in central Calgary, but Liberal MP's there are embattled due to their sexual harassment, and are sitting Independents. They will likely only run in Edmonton and Calgary.
Romy Tittel is the new leader, from what I can tell she is pretty bipartisan and centrist. Nonetheless, there is a big vacuum for environmentalist politics in Alberta since the NDP has moved more to the center. The party still needs rebuilding and is nowhere near 2008 levels of support. I'm not sure where many of the candidates will run (or who will run besides a few people I know or have already announced).
The far left has always been relatively robust in Alberta, but divided. Many leftists aren't that interested in the party, due to schisms. Naomi Rankin will lead the party and will likely run the same candidates in the same areas and barely break 1% there.
Knowing Len he's going to lob law bombs and neither Social Credit or Pro-Life are going to be able to run candidates, I'm not including them for that reason.
I'm jamming all the separatists together in Alberta First. I think it's likely they will run a couple candidates, but the party itself is leaning right-libertarian, so I they'll be a bit socially progressive.
THE ALBERTA ADVANTAGE
Probably will be the most robust far right party, along with Reform. Will run around 6-10 candidates, I'm assuming most in rural areas. They are disgruntled Rosies and are using the same imagery. I think they will get about 1 - 3% where they are running.
THE REFORM PARTY
Another dime a dozen far right party in Alberta, from my understanding it will run a couple candidates in Calgary and a few more in rural areas. A bit more to the right of the Alberta Advantage.
FASCISTS AND INDEPENDENT CONSERVATIVES
There are some new anti-immigrant parties in Alberta though they mostly focus on federal politics, I doubt I'll make them into an actual party but stick them in as independents. There is also the usual far right culprits like Larry Heather. The most obvious independent is Derek Fildrebrandt, I'm not sure if he will rejoin the UCP though, or join another party.
ANOTHER LEFT PARTY
There is a lot of disenchanted NDP activists, I'd like an optional party headed by Mimi Williams.