The ZB schedule as published above can be operated as a split duty but it won't happen before S12 at the earliest if at all...why would they enter a market that is going to be a bloodbath?
Because, being a 'loco' carrier, and the partnership with Aer Europa means that ZB/AEA and Iberia stand the best chance of all. Iberia with its oneworld connections, then the low fares of ZB with the connections provided by AEA means ZB has the best of both worlds. Also, the only carrier to have a morning flight will hold slight advantages too.