Just because one side has a plane doesn't mean the other needs an identical one.
Ju-88S was nothing. It led, however, to the Ju-288 and Ju-388 if I recall. Neither of those appeared in time to see service. The Ju-88S was a pathfinder if I recall, and rather slow until 11000 meters altitude where it had GM1 boost. It had almost no bombload at all, only a single defensive gun.
Not comparable at all. What you're looking for (more representative, later, more powerful model) is the Ju-188.
As for the Ju-88P, it also was nothing. It was a failed attempt to make a good anti-tank platform. From 1941 it was already woefully underpowered and overweight. It only gained more weight as they added more armor (seems it was too slow, and it made it a very large easy target for ground fire).
For the Ju88 series we need a couple more, but NOT because of the RAF's mossie variants. We could use the Ju88A-1 for BOB and early war setups. It had 1 dorsal and 1 ventral MG17 only, less horsepower, less wing area, less climb rate and ceiling as well. It was the more common Ju88 in the BOB.
For the 1942-1943+ we could really use the Ju188 with improved performance and defensive firepower.
Outside of that the Ju88C-6 would be nice but would have limited use with 1 MG/FF and 3 7mm fixed forward guns, no bombsight, and the speed of a Ju88A. Bf110s and later models (190Fs etc) proved to be better ground attack platforms. Nice to play around with, but not really filling any planeset holes.
