^Riker and Troi serving on Titan is canonical, established in Nemesis itself. That's what the novel series is based on in the first place. True, Hive does show Tuvok aboard as well, and a character whom the artist intended to be Christine Vale. But it's possible to borrow characters and elements from other continuities piecemeal without embracing the whole thing. The Shatner Totality trilogy borrowed Titan crew from the novel series, but grossly contradicted that series' chronology of events. And Star Trek Online has borrowed a number of characters, ships, and ideas from the novels while contradicting others.
Hive doesn't fit with the novelverse at all. Based on the stardate, it's set in late 2382, months after Destiny, but the Borg are still active, Picard is still single and seeing Vash, and Seven of Nine turns out very differently. It depicts Voyager's return in a different way than the novels did. And it handles the issue of Data's potential resurrection very differently than the novels did. Indeed, I'm not even certain Hive is entirely in continuity with Voyager, since it depicts a Borg conflict with aliens that are almost exactly like Species 8472 but aren't, and nobody mentions that something exactly like this already happened with Species 8472.
As for other comics, as a rule, IDW's various miniseries are not in continuity with each other except in certain cases. For instance, all the John Byrne comics are in a shared continuity, but they're incompatible with other comics like The Enterprise Experiment. There is one other post-NEM comic, Countdown, but it's not clear whether it's compatible with Hive.