First of all Thomson never planned to serve ALC next year - all they're doing is a weekly PMI and thats all thats ever been on sale for next summer (for the last few months since it was released).
As for Peel investing - I think you'll find the terminal frontage (brushed metal), as well as some money airside to fund red stop bars, lead on/lead off lights and stuff like that. Whether they were forced to have these by the CAA or not I don't know but either way they've put them in.