I think we'll probably see #1 happen. If we're to believe Armstrong after he fired Yeo, he's not firing another coach without moving out core players on this roster. [Cue comment from February 1, 2017 about independent contractors.] Probably not happening at this trade deadline, probably over the summer around the expansion draft.
I don't know what #2 accomplishes near-term. After a massive shake-it-up deal, if we're still not performing, then this becomes a topic of discussion. I don't buy that Berube is responsible for lazy puck-handling, guys not back-checking, lack of defensive awareness leaving guys wide open in danger areas, and so on. Not to say I might be totally pleased with his rumored approach to games, but even presuming that's all true it doesn't mean guys can't show some hustle, some awareness, some smarts. Plus, if #2 happens near-term, it's throwing Berube under the bus for the team's problems but a tacit admission by Armstrong that he's failed in his job and it should raise the question so why should you keep your job through yet another head coach?, even with a 2019 Stanley Cup Champions banner hanging at Enterprise Center. Again, I don't think we're at that point of judgment for Armstrong [yet?] and I think a kick in the head to the current core is much more likely.
We're not doing #3 any time soon. I think it's more likely we double-down trying to preserve what we have, even at the cost of mortgaging more of the future. I don't think we do that immediately, we might try to salvage a pick or so right now, but if this team rebounds into that 7-12 range in the league I can easily see us forking over future assets to try and bump to the 3-5 range or better and try to make another Cup run.