I stood Voyager Classics Prime and Battle Tanker back to back. Yeah, Classics Prime has his head higher than tanker but Tanker's shoulders does give him a bit of extra height even though he still falls a bit short from Voyager Prime's height. Both are still comparable.
Still, the closest 'standard' size for Tanker is still that of a Voyager.
Perhaps and I am personally not counting on it but that 'what is being said' is pretty much the only information we have even though it may count to nothing.To me this sounds like wishful thinking, I'll be impressed if it is true.
What I will say is given the rate that the $AU is climbing and assuming it stays on course, we may still get it cheaper.