Also, I hate to be that fan that will ask a question that most likely can't be answered so I guess I'll ask it in a vague manner:
(I've been a Buck and Caveira main since their releases and almost solely play only those operators) Does the future of Siege hold anything for Buck/Cav for them either in terms of gameplay changes or their stories to be told (ex: Hammer and Scalpel, because I did notice on the board Harry stands in front of, Caveira has been designated as one of the 3 Team Leaders of the Defenders along with Doc and Castle)
I guess time will tell!