Apologies if this was addressed already, but do we know if the second edition huge ships are new models?

Just trying to figure out if it might make sense to find the original versions at a discount and get the conversion kit or if the new versions have better details, moving parts, etc. that would be worth buying.

From what we've seen, they're the same models with engine glow painted in... possibly some small changes in paint scheme, but that's it.