This made me giggle
Wiki'd 
Thank you, "Shut Up and Sit Down!" review of Sentinels of the Multiverse. 
glances at playtester threads of questions upon questions…
glances at broccoli's Playtester badge…
With this much having been (inadvertenly?) spoiled, is it fair to ask for the difficulties of the remaining heroes from the set? I won't ask about villain difficulties since I believe that will likely depend upon their interactions with each other.
Both of these got a smile out of me.
It never even occured to me that the complexity ratings might not be fair game. My appologies. They run the gambit though. Fun note. We have not seen a lvl 1 hero since base set.
I'm not upset; it just caught my attention as something that might fall under NDA. I supposed that "leaked" might have been a better choice on my part than "spoiled." I'm aware that we haven't seen a level 1 hero (or villain, for that matter) since the Core Set, and I'm curious to see whether that changes on either side of the equation.
I like to keep my expectations low, so whenever a expansions is released, I expect to see threads of every character to need fixing.
Ex-Pat and Fixer are the only heroes who've had intense "fix this hero" threads. As far as I remember, threads like these for Argent and Nightmist were non-existant to few and far between. CR had Spiff's troll thread, but that ended up being mostly about Fixer and Ex-Pat again anyway. There was talk about Omni being too powerful, but that hasn't really permeated through the forums.
I think Bunker had a couple of threads about "fixing" his modes...
Generally, I think the more heroes you have available, the less you will see those types of threads since the sheer number of choices available means you won't get to play some heroes all that often so you begin to be more selective about which ones you play... so you just skip the ones you find less than optimal.
I completely agree jagarciao. Bunker had a couple of "fix" threads, and one forumite made a custom deck for him, but Bunker while having his critics, has never caused as much controversy as Ex-Pat and Fixer. Absolute Zero also has critics, but I don't think I've ever seen a thread on how to "fix" him. At any rate there really weren't any "fixing" threads for either Infernal Relics or Shattered Timelines, unless you count people who wanted to nerf Omni-X, and so it's still not really a normal thing that happens whenever new heroes get introduced.
The romance with OmniX people had (myself included in that company) fizzled as you played more games. I think the first time we all got hit with 5+ damage in a turn and lost 6+ components quashed those feelings swiftly.
Bunkers modes are really interesting and are quite good, but they require a "long view" vision. In todays microwave instant-gratification based world, Bunkers ideal playstyle butts heads with how we generally feel it should work. Take Chrono-Ranger as a perfect counter example. Everything is instant, in the moment, pew pew pew, profit. Bunker players, if you truely are interested in edging out as much out of him as possible, must be planning their play phases two turns in advanced. Upgrade Mode is a casualty of the instant-gratification mindset as its immediate benefits are few but the long term gains will pay for themselves in a few rounds. No wonder it is brought up so often when others talk about Bunker as a "low tier" hero. (It is the same mindset that prevents players from enjoying the Zen of Mr. Fixer in my opinion).
Having said that, I think the new hero decks will appeal to many. Sentinels might (read: will) overtake Chrono as the insta-grata champs.
Something like this?
Whoops! Spoilers!
See, that's why I find Bunker boring - your ideal setup is to automatically do the same thing over and over again with no real decisions.
Oh, time. Why can't you move faster?
Interesting nemisis icon for The Naturalist
I think Bunker gets the most "change me" topics because it feels as though he goes through a long set-up that only yields a fairly average reward. And while I love Bunker and wouldn't change him, I can definitely see the argument.
Rabit's last post just made my day 
If that's how the player plays him, yeah, I can see that.
That's why I don't play him that way. 
Glad I can occasionally do something useful. 