Yeah, sorry perhaps my wording was unclear. I had meant that were FR to take up the slack from a potential Baby closure it would likely make EMA their largest UK base outside STN.
There are routes which Baby currently operate from EMA and FR do not, but the destination airport is already within the existing FR network, such as..
EDI
MAH
NCE
AHO
VRN
MLA
CGN
They could also start up EMA to these among others in order to closely resemble the defunct Baby route...
GNB
PIK
LDY
TPS
And increase frequency on the ones which themselves and Baby both run, such as ALC, PMI, AGP, BCN etc. With all that you'd have a pretty large operation at EMA. Not sure how many extra aircraft they'd need to bring in for all that though?
Likewise Easy could return and copy the baby network on a similar scale? But like someone said both parties would have to react quickly or risk missing the boat.