I feel there may be a few routes like CDG which easyJet might feel inclined to try from SEN. It's one of those for which it is really difficult to predict the results - obviously there is considerable demand for travel from SEN's core catchment area to Paris, but how much of that easyJet could attract is open to debate.
The April CAA provisional stats should become public on Monday and the debate here on what they show for SEN will be interesting. I'm not really sure myself.