Yes to all
Monster pack
Spell pack
Magic item pack
New faction pack
This. Also, Campaign Pack that either adds 8 chapters to conclude the story (making the sandbox less of a post-campaign result and more of a what-if...).
Faction Pack should include 6 factions/sovereigns, and include a leader for Capitar and Urxen. (thus, 6 factions, 8 leaders and new traits.)
Lastly, i would like to be one of the first to call for an expansion. Some games try to use an expansion to "fix" the emptiness and lack of depth to the base game. I would like to see 2 total expansions, actually.
I will make a new thread for it though.