If it's for the entire season, then
- Seoul Dynasty
- London Spitfire
- New York Excelsior
- Dallas Fuel
- Houston Outlaws
- Los Angeles Valiant
- San Francisco Shock
- Los Angeles Gladiators
- Florida Mayhem
- Philadelphia Fusion
- Boston Uprising
- Shanghai Dragons
But for the stage 1, I think San Francisco will do slightly worse (most likely just behind LA Gladiators, maybe even behind Florida and Philadelphia). I think Sinatraa is the only top tier Tracer they have although I know Danteh can be decent.
Compared to most people, it seems like I predicted NYXL and Florida to do better, and Dallas and LA Valiant to do worse. So short explanation for each of them.
-- NYXL: In the preseason, NYXL had Libero playing the flex support role. He has never played that role in pro scene, and it was quite obvious that he wasn't doing that well on it. JJoNak is known as one of the best Zenyatta and Ana. Although he has never been tested at pro level, I think he would do better than Libero on those characters. Since he turned 18 just after the preseason, he should strengthen the team quite a bit. Also, that means Libero can go back to the roles that he feels comfortable in, and Libero should add great amount of flexibility to the team for DPS.
--Florida: Yes, they did poorly in the preseason. To me, the main reasons for their poor performance seemed to be CWoosh and Logix. Logix can't really do well on anything other than Tracer, and even on Tracer, he has failed to do well on LAN. But I believe his strength on Tracer will start to show again once he gains more experience of the big stage, and it is difficult to imagine that Tracer will ever fall out of the meta. Since TviQ can play almost anything, I think this DPS duo can prove themselves to be lethal to other teams. Also, CWoosh performance was quite different from how well he did in the contenders. I believe how he did in preseason does not truly reflect his skills.
--Dallas: They have great players on all heroes, so it is difficult to think that they would do bad, and I agree. But one weakness is that each player tend to have a specialty in certain heroes (EFFECT on Tracer, Taimou on McCree and Widow, Seagull on Genji and Pharah, Custa on Moira and Mercy, etc.). For example, Taimou is the only one who is good on Widow, and he tends to have good and bad days. So in his bad days, there aren't other players who can substitute him on Widow.
--LA Valiant: I think their great performance in preseason has a lot to do with how well the tanks and KariV's Mercy did. Fate's Winston is well know for the extreme aggressiveness, and when that works well, that helps the team greatly as we saw in the preseason. But as other teams get used to his style, they would deal with it more effectively, and when they do, Fate's aggressiveness might not work so well anymore. Also, Mercy is currently so OP, and since KariV is one of the best Mercy, he was able to do so well. But I feel like Mercy will be nerfed soon or later and will be less powerful.