What currently unanswered IDW mainline comics can you think of that are annoying you that don't seem to be approaching an answer?

Mine are:

Where is Jimmy Pink? We know where Verity's been and Hunter's dead, so what about Jim?
Where is the Magnificence? Did Hot Rod return it to it's home, or does he keep it in his pocket?
Was Nightbeat's body ever discovered on Gorlam Prime? Since Hardhead hasn't returned to the main forces, and he was the only one who knew he'd died from what we've seen
Was the Reflector trio in Spotlight Wheelie a different batch that the ones who are still alive now?
What happened to Abraham Dante? Is he dead? Is he still with Scorponok?
Where is Grimlock?

who has some more?

Wasn't Grimlock taken by Ultra Magnus & then Magnus showed up again but Grimlock seemed to have disappeared. Don't know if anything in #2 that covers what Magnus was upto apart from Wreckers.

Well that's just it, the Wreckers reach Grimlock's cell at Garrus-9, but he's missing and hasn't been mentioned since..though it was mentioned that he'd gone mad or something

Maybe James left that in there to use Grimlock in the ongoing. Seeing both books seem to be not set on Earth.

Jimmy Pink will show up in a mini called Legacy of Rust (also featuring Punch/Counterpunch). It has been written, but has yet to be published.