Yeah me too. I hope that those informations will come soon.
Actually that has already been done, just not on the forum but on Discord. Me and Elrohir (other mod of Discord server) run more community based polls there that not always come directly from the devteam, which this was one of. Here are the results: Note that these results don't confirm Rohan, as the plan still is to first create the 6 bfme2 factions and after that Angmar. Since this will be a long task the devteam has not yet speculated on new factions.
I would personally still love to see the ideas you guys have about Rohan (and replacements for Gondor) here or in a more serious game design manner in this thread I made. The devteam has also posted a discussion about factions before that hosts some ideas.
I'm currently on vacation but I've been thinking of ways to make the forum sections more fitting for all these different kinds of topics, I would love to get some feedback.