So it is the end then? The stuff on Memory Beta said several sequels, so I thought there might be more after Schims.
Memory Alpha calls Schism
the conclusion. And since the usual trade paperback collection is 5-6 issues, I'd imagine that after the success of Byrne's first two Romulan stories, IDW probably commissioned Schism
specifically in order to fill out the story enough to give it a full TPB of its own.
Now my next question is do the Romulan stories have any connections to the Year Four series? And do either of those have a connection to the Mission's End miniseries?
Generally each of IDW's miniseries has been self-contained. I'm not aware of any cross-connections.