Imperial Agents expansion is coming...
I can feel it...
>TQ
More suits that aren't massive like the Stormsurge and Ghostkeel, it's been a long time since the Tau got a average looking battle suit. Maybe a auxilliary, earth caste or water caste support unit if you wanna be extra about it. If we are talking about refreshing old units (which seems to be the only thing GW has been doing as of late) please bring back the old metal characters like Aun'Va ans Aun'Shi and those well crafted metal ethereal sculpts.
If anyone even suggests a Gue'La KT im here to remind you lot it's the easiest and most common Tau kitbash anyone could come up with, get to work and make your dudes, GW doesn't need to baby you over something so simple and easy to make that really doesn't need specific rules that much.