I would go for a Titan series set around the time just after Nemesis. Dealing with the power struggle on Romulas with cameo appearances from the TNG cast.
R. Star wrote:
Hard for there to be power struggles on Romulus when it blows up.
Putting aside Rolling Stone's idea of TNG returning, I think the Romulans are a very tenacious people and the Empire will eventually
rename another planet as Romulus or perhaps New Romulus. It could be a question of what happens in the interim, IMO.