Fairfealfrank,
In terms of the mention of IAG asset stripping, firstly to say the Dublin Heathrow is a very strong market in terms of traffic and one of the busiest European routes. Hence, I don't think we need to worry about Aer Lingus' slots. However, increased size in aircraft on EI services on Dublin London could release BA's own slots (from the Dublin route) that could be deployed onto their own long haul routes.
Equally BHD the same applies.
Ei- bud