As the japanese, I think germans also lack bombers, especially later ones.
True, we already have lots of models, Ju-87, Ju-88, He-111, Do-217. But, most of them are early war planes.
So this is what I suggest:
Absolutely needed, and not so hard to make:
He-111:
H11, OR preferably a
H16. By 1943, most of the He-111s were from these variants, either new or rebuilt. I'd also suggest to take a look at this pack.
http://forum.aviaskins.com/showthread.php?t=1471&page=5 The author did a good job to upgrade the existing variants, maybe adding a later H6 with C1 stand would be useful too.
Ju-88:
A14, a dive bomber, mainly used in anti shipping role in the mediterranean and english channel theatre, but also used on the eastern front (KG51 for example)
C6a. a Zersörer, but as far as I know, there is a cockpit done, would be a shame to let it fade into oblivion.
Would be great, but may be hard to make:
Do-217:
Maybe it was the best bomber of LW, too bad its quite overlooked.
Manuals on Pg 3!
K1, already ingame, only needs a cockpit. Dont know how good is this one
http://forum.aviaskins.com/showthread.php?t=2744, but still better than the stock He-111 cockpit.
M1, same as the K1, except DB603 engines. One of the fastest in its class.
E2/E4, early variants, but still with great performance and heavy bomb load. There are lots of original documentation available on the net, with lots of useful pictures of its cockpit.
He-177:
Fortunately WIP
Ju-188:
Not that important as the planes above, but was still widely used, although only on the channel front. So maybe pointless to make.
Me-410:
Yes, I know its a heavy fighter/zerstörer, but was also used as a bomber, by KG2.