Which characters DO you want to return in DA 4?

I always thought the lack of an arm was not a problem when it came to bringing back the Inquisitor. Even the Trespasser epilogue shows them with a cross-bow replacement if they elect to join the Red Jennies. Substitute any weapon or a shield for the crossbow and it is fixed. Even mages have been confirmed as able to do magic without a staff in Tevinter Nights. Then it seems that it is possible to have an actual working arm, which I also thought wasn't lore breaking, since if a hero of Irish legends can have a magical replacement arm, why can't Thedas? However, having to adapt to their new situation would explain a drop back in experience level.

Nevertheless, there was that presentation they gave where they stated the intention of Trespasser was to finish the Inquisitors' story. I still live in hope they were simply referring to their role in the south as leader of that organisation, not as a character but I'm not holding my breath on it. I also agree that I'd rather have no Inquisitor at all than brought back in a cameo role with little or no control over their character presentation or dialogue. Being railroaded into a response based on our decision at the end of Trespasser wouldn't be good at all since the Inquisitor could have any number of motivations for their reaction to Solas' disclosure.

As for returning characters, I'm now of a mind that I want as few of these as possible, as they invariably end up a disappointment. Also having to adapt their dialogue to suit their relationship with the Inquisitor wastes valuable resources that I'd rather see used on developing totally new people we can interact with. That said I think the following are likely to show up:

Dorian - because he was set up to be our linking character and has appeared in enough stories post Inquisition to suggest he will be our Tevinter contact with the shadow Inquisition.

Maevaris - because she has a considerable fan following but I think will more likely be a cameo or contact than a companion but I could be wrong about that.

Charter - because she keeps cropping up as an Inquisition contact and was said to be one of Leliana's successors - role probably spymaster.

Harding - possibly because she was also being trained up to be a successor by Leliana so once again may be our contact out in the field. It is just marginally possible that she may be a companion.

Calpernia - because her possible death was ambiguous and in every other scenario she survives - may be part of a side-quest either as a continued Venatori or opposing the Qunari.

Cassandra - again possibly as part of a side-quest to the Hunterhorn Mountains, since she ends up there in most scenarios whether Divine or not. Even if the Inquisitor didn't suggest reforming the Seekers she could still have done so.

Sten if he is still the Arishok but that is how he will be known now and without our PC from DAO he will have no real connection with our new PC other than to be in opposition.

Cole - possible cameo offering assistance whether as spirit from the Fade (hinted at) or human version (because he has become a travelling entertainer).

Sandal - Well they've managed to include him in every game or its DLC so far.

Valta (from the Descent) - definitely expect her to show up at some point - may have vital information or assistance of some sort against Solas

That is about the sum total of former characters or companions I expect to see. To be honest, it is such a long time since DAI that everyone is going to seem like a new character anyway, which should help because if they don't bring back the Inquisitor then my new PC will not know them so it will make no real difference to them who they are from previous games.