My usages are mostly for 'low fantasy' skirmish and RPG's in Hyborian style settings - so that skiews the kits I'm looking forward to the most, lol.
1) Thureophoroi - they seem like they are gonan be a great set to make and kit bash starting male characters for hyborian games/settings with a more classical or ancient world take.
2) Trojan Chariot - I dont know if it was planned already, and it just happened to pop up after my post extolling the virtues of Hector as the greatest hero of those at Troy, but I remember it popped up soon after, and I feel a connection to it in that regard. I am keenly looking forward to seeing it, though!
3) Ancient Egyptians (with a hope they lead to a Sherden/Sea People dual kit down the road)
4) Warring states kits
5) Squamata legionaries - These guys were at the top of my list for a long time, but the victrix kits did scratch my itch some. That said, I'm still very keen to get my hands on a set of these.
*that said, I will always be keen to see if the Lizardmen get an update or upgrade sprue!