Out of curiosity, are most of the posters in this thread asking for more Triss content playing the game on consoles? I post this question because if you want more Triss, your best bet is the PC game.
If CDPR follows through on getting a mod kit out soon, there will be all kinds of stuff for the game by the modding community, and I have to think Triss will be a part of that. If CDPR doesn't fix Triss' 'Well' problem, somebody else will. As I mentioned previously, the Skyrim modding community fixed all kinds of bugs/problems the developer didn't address. In fact they changed nearly every aspect of the game (and made it more fun). Didn't like the way the game ended? Would you like to see a fully staffed Kaer Morhen? Care to permanently shack up with your favorite sorceress (might not even be Yen or Triss)? Would you like to run missions with Triss or Ciri? Would you like more/better signs? I predict we'll have that and more for the PC -IF- CDPR gets that kit out by fall.
If you want more Triss, I strongly recommend the PC version if you're playing on a console. I can only assume CDPR got the message to throw a little extra Triss content our way in the DLCs, but if they don't (or it's still not enough), someone out there will. Or you could do it yourself. If you play TW3 only on the console, you'll only get what CDPR provides, but PC players will have access to the fan community content. We'll see what happens.