I have attached the link to the ACL report for S13. In it you will see the number of seats on sale between Lgw and Belfast(both) for this summer. Seat numbers will increase from 443k to 702k, about a 60% increase. I suspect the bigger part of this capacity increase is out of BHD. Either there will have to be massive growth to Lgw out of NI or someone will be taking a real hit on profitability.
http://www.acl-uk.org/UserFiles/File...n%20Report.pdf
TB