I'm not involved in the details of individual champion work at this point to be able to talk about specifics when it comes to bugs. I'll occasionally have context on something and be able to respond, or the right person will be really nearby, but generally I don't have the details.
In terms of non bug stuff related to Shyv I'll share stuff if we've got anything to mention.
Current thinking is we'll generally be keeping TFT systems separate from those of other game modes. You won't earn champion mastery for example because you're not playing as a specific champion. Missions wise TFT will probably have its own unique sets of missions, rather than overlapping with regular ones, though can imagine might do some at some point that could be completed in either context.
Possibly. We've got someone testing out potential ult changes where Soul collection's more about long term permanent increases to ult power than large modifications to damage of the next cast, plus the ult draining 4 targets and 11 and 5 at 16. Not sure how those are working out, haven't personally seen them in game (my playtesting time's been heavy focused on TFT recently).
We wanted something that suggested a focus on decision making (tactics) and implied combat between groups. Possible confusion was something we talked about, but figured after an brief adaptation period probably wouldn't be an issue, especially since we're assuming longer term it'll just be TFT to most people in the same way SR, TT, ARAM are used as shorthands.
Yeah, I like Qiyana's base splash, but even I can admit the background is garbo. I don't know why they made it an explosion, what purpose does that serve to support her theme/personality? The Battle Boss splash is great.
The Goal was to sell her high moment, which we found through playing her and from playtests, was her Ult. The Splash is supposed to be right after she ults a wall and it explodes