I don't think Atlas will fix the nose error. (the nose is too long, and the countour isn't quite correct)
Although I think thath the gensets were delayed to fix the fat handrails (they're a bit closer to scale size now)
The GP40-2Ls were "announced" that they were to be delayed, which is why the shipping date has been pushed back to August. For the gensets, it still says June so it is very possible that they may make it in the next container which will arrive at the end of June, and we'll all get our gensets mid-July.
And the thing is, the gensets should be already produced and ready to go. At this time, they should be ready to load them into the shipping container.
Also, I haven't seen the top of a GP40-2L, but is Atlas using correct fans? I've found that Atlas uses the same cap-top fans on all of their GP40s which is incorrect for many prototypes (especially Pan Am). The fixed it with the GP40-2 (theres no excuse because they dash 2s all have the same fans)