Agree slots are the issue and dare i say move leisure routes to LGW as in the past. Its LHR and world class T5 that passengers would prefer and new routes with direct connections to SEAsia would be attractive i hope to the UK regions and near Europe connections. Rolling back the the love affair the regions seem to have with Middle East Carriers and maybe restoring aviation jobs to the UK.
Unlikely that GA or
PR would get into LHR giving BA the advantage for Premium traffic