The teams that have qualified already are as follows:
IFK Goteborg
Rosenborg
Haugesund
RoPS
Honka
VPS
Sligo Rovers
Dundalk FC
Derry City
Atlantas
Ekranas
Shakhter Karagandy (who were the first team ever from Kazakhstan to make it to the group stage)
Astana
Kairat
Daugava Daugavpils
Daugava Riga
Fram Reykjavik
FH
Stjarnan
Sliema Wanderers
Birkirkara FC
Linfield
Crusaders
Aberystwyth Town
Airbus UK Broughton
Nomme Kalju
Sillamae Kalev
Vikingur
IF
B36 Torshavn
Libertas
Shaktyor Salihorsk
Dinamo Minsk
Neman Grodno
Rijeka
AIK
Molde
Nacional
Estoril
Lokeren
Panathanaikos
FC Zurich
PEC Zwolle
FC Twente
Some decent teams already in there. I'd like a Faroe Islands team, for family reasons, but failing that I'd happily take a Dutch, Belgian or even Portuguese side.
The stadium chosen to host next season's Europa League final is the Stadion Narodowy in Warsaw. So just a quick trip down the M6 if we get there.