The press release from Ryanair states that they will add extra flights to Alicante, Faro, Fuertventura, Gran Canaria, Lanzarote, Malaga, Palma and Tenerife.
No kidding! 
All routes GSM used to operate from GLA. But I wouldn't be surprised if easyJet adds extra flights to those destinations as well, or even Jet2 pulls in.