A lot goes into what the cartoon delivers... Part of me digs the Delta's evolution to the Eta, and what might seemingly have been an influence Anakin had directly through modifying his own Delta? That's a neat possibility, but at the same time it's sort of traversing vehicle territory I'm not THAT interested in... Like you, I'd prefer seeing the radically unique V-19's, or the Snail Tank Droid... Much better items I would enjoy from Clone Wars.
V-19's supposedly on the way... This CW fighter from Lego's just a neat possible evolutionary step, and one I'm kind of on the fence about is all. I mean, I've kind of come to accept that Ani's CW fighter is the one we saw in the original cartoons... Maybe this was his second CW ship, which leads to the Eta's design, and so forth... I dunno. Neat, and yet not neat at the same time, if it could possibly usurp a cooler toy/vehicle being made.