here has been an extensive campaign for Ryanair to return to Fuerteventura after a row with the local authorities.
Cllrcollins
This is being discussed already in the Ryanair thread.
But to answer your question, there seems to be no hope for
Fuerteventura 
The Ryanair route map is already showing 44 new routes to the Canary islands.
- 18 new routes from Gran Canaria [not a current Ryanair destination]
- 17 new new routes from Lanzarote [not a current Ryanair destination]
- 9 new routes from Tenerife South [already has 8 Ryanair routes]
... but alas nothing for Fuerteventura.
But if it's the
Dublin to Fuerteventura route you're interested in, then I suppose you know Aer Lingus will operate this route next winter once weekly on Saturday afternoons.