Originally Posted by
Fabo.sk
E195 is slightly larger than E190, in theory KLM could simply use a little less compacted cabin and/or block some business class seats to get down to a capacity of 100 and get by with 2 crew. I don't know what is the marginal cost of getting a third crew member in, they could even potentially switch between a 100 capacity / full (116?) capacity dispatch ad-hoc.
I believe the idea of going for the 195 is to continue to grow despite the shortage of landing slots so it wouldn't make sense to go for the same capacity than the current 190. Plus KLC staff cabin staff is probably the least expensive they have so they probably won't mind adding an extra crew member if they can get passenger growth out of it.