BB Soundwave's alt-mode feels weirdly like an armored up version of the Batman Beyond Batmobile. Like, it's not really, but it sort of feels like it? I dunno. It's kind of fun...
Agreed with this but we did get an idw jihaxus based on the comics and the upcoming jihaxus is based off generation 2 regeneration one. It's probably why I confused the two names.
The previous Jhiaxus (the Armada Starscream version) wasn't really based on the IDW comics (certainly not in regard to its color!). Rather, they changed the IDW comics design (briefly!) to accommodate the new figure.
Mines yellowed very minimally. You have to be looking for it otherwise you don't see it. It's mostly just the top edges of the forearms.