Ju86 was obsolete in the spanish civil war, and saw no WW2 service aside from minor export versions (Germans needed to make some $$$ to buy real planes!). The reason the 86 was made was the same the Fw190 was made: It used different engines, easing other production lines. The initial models had in-line diesel engines, consuming very little gas and giving enormous range. However, they were so ineffective for combat that the plane was obsolete as it started. They replaced the export version with single-row radial engines, but this didn't help very much in performance (more of a maint/fuel issue, supplies, logistics, etc). While it looks elegant in that 1920s/1930s style, WW2 material it ain't.
The Do17Z was obsolete before the BOB. They used them because they needed all they had, but they were scarce and withdrawn from combat afterward(the virtual Ju87 of level bombers). Fills no niche or hole in the planeset to request this thing, honestly.
He111 ftw!
