I would have hoped that LH hubs would mean decent multiple daily departures to FRA rather than the patchwork services to CPH and BRU....
In a previous interview WPS said that if FRA got an additional runway there would be oppertunities for Regional to operate from a number of regional airports to FRA. There is, however, only so many passengers who want to fly from ABZ, EDI, GLA, LBA etc to FRA. I guess the frequency would reflect demand.
Mainline & Regional share a brand (however weak). It makes no sense to me to have duplicated management structures. Merge the companies, have 2 fleets & 2 payscales but offer better career progression (FO Emb - FO A320 - Capt Emb - Capt A320) & reduced infrastructure costs. Simples.
Baby on the otherhand has a stronger individual brand & different core values. It makes sense to keep them seperate, possibly differentiate a little more between the 2 brands.