We've seen the trailer. There's no way he's staying behind. Taco cat must consume.
I do think the MSQ was rather predictable though. It's going to be Team Krile and Team Thancred. I assume that the actual division won't really begin until we get over there and everyone meets up. Even though we have both twins with us right now, it's likely that they might split up between the teams. The way Thancred discussed it gave it the same vibes as a sporting competition. He's not discouraged knowing that we're competition, and seems to be excited by it.
Also, I know someone's going to point out that it's technically our team, considering Wuk Lamat clearly came to request our assistance, but due to Krile's motivations, her job change, and you know the fact that they literally told us she was going to play a bigger part in DT, it might as well be hers. We might not even stick around with her the entire time.
Given the context of DT the teams aren't going to last long anyways. It'll be a split of 9-12 quests for each team potentially before we join forces and agree to back one of the four contenders for the throne of Tural in order to prevent the one warmongering successor from taking power.
Manderville was alright, Tataru was interesting and Allied BT was cute.
Also just a minor detail from the MSQ I noticed though:
They seem to be getting more comfortable with adding references to side content if you've completed it. I assume players that haven't done the EW AR series don't get the second part of this remark.
I know it seems insignificant but it's yet another step in the right direction like with them allowing Gaia to exist in the MSQ if you finished the Eden raids. This will allow them to relax and not worry regarding the importance of the lore they create for side stories.