I think the basic wood elves will only appear in the Lothlorien Battle Company per the Battle Company "bundle" on GW's site.
Lothlorien
https://www.games-workshop.com/en-US/Lo ... mpany-2017Rivendell shows Numenoreans, but I think that's only because they come on the same sprue as the sword and bow elves. If I remember right, either on one of the Twtich TV intereviews or in one of the seminars Adam Troke said Rivendell elves will not upgrade to anything and will only get Rivendell Knights on the special reinforcement list.
https://www.games-workshop.com/en-US/Ri ... mpany-2017Thranduil's Halls looks like it starts with armored Mirkwood Elves and Mirkwood Rangers, and there was a tiny pic posted in the November White Dwarf that had Thranduil's halls on it and I squinted real hard at it and I think they start with 2 mirkwood elves with sword and shield, 2 with glaive, 1 with bow and 1 ranger.
https://www.games-workshop.com/en-US/Th ... mpany-2017