I have to say, I just played Trespasser myself and, my friends: YES. massive YES.
Thinking about it, my mouth waters at the idea, because...
- There is the emotional connection with Solas, and wether you romanced him, befriended him or hated him, the villain argumental arch would be way more emotional and deep. I never felt Corypheus to be too menacing, in fact, it was a terrible villain, so flat and with the hole "I'm the classic bad guy" thing. Solas would be a different matter because of the connection you chose to have with him.
- Character growth. It was mentioned in the first post, but it's so true. The Inquisitor is no longer Inquisitor. Probably the Inquisitor had too much corruption on the order and it had to be disbanded, or he/she disbanded it in the first place since the Exalted Council. Either way, you would start anew and from 0. Without an arm and the extensive support of the organization, she/he would be a wanderer, kind of like a "Strider", roaming Tevinter. Which would be amazing.
- The arm removal: the arm removal would open up a very interesting combat system. Since the character have to learn to fight again given the circumstances, wouldn't be interesting to have different solutions depending on the class? For example, and as other people said in this post, kind of a mechanic arm for rogues, with different tricks, a spiritual or lyrium based arm for mages, or a full metal blade arm for warriors.
- And in the end if they chose to have the Inquisitor as a cameo, it would be a headache given all the different races and voice actors and background. Also, I would like to see more direct consequences for my actions in Inquisition, since many of the choices I made didn't matter.
- And if Bioware also wants to start anew and lure new players into the saga? Why not make the Inquisitor loose his/her memories, kind of an amnesia, and make the quest of Solas even more interesting by also trying to remember key fragments of what exactly happened? It's a silly idea, but hey, could work.
Anyway, the whole point is that it would be so cool. I just can't bring myself to start anew with a character I have 0 connection with. I just can't. Please Bioware, we beg you 