I see Jet2 are upping Dubrovnik to two flights per week for next summer. Sunday flight operates 22 April - 29 September, with a new Wednesday flight operating 27 May - 15 September.
Pity they wouldn't have added Pula or Split rather than additional Dubrovnik, but good news all the same. At least its not additional capacity to an already well served Spanish destination!!!
Pisa also confirmed for summer 2013, operating 20 May - 15 September.