staraviation where do you get your information from? Indeed things have not yet been finalised, however XLA have committed to those flights above and will somehow, if they decide to decrease the number of based aircraft, need to cover them somehow.
Plan is still 2 737 - both XLA -800 a/c, together with 1 757 TF reg and the subcontract of FJE, operating similar to what Scandic, Islandsflug and Hola Airlines have done for XLA over previous seasons.
It seems that we may not find out until a few weeks before the season starts, as happened this year.