There are, but in the uncertain market the UK might not be their primary focus for the next couple of years.
In reality for the beach routes, Egypt is really off the radar, so they should be looking at West Africa - maybe Gambia and the Cape Verde Islands, just as the major tour ops have. I am really surprised they haven't started Luton to Funchal, only served once a week by Thomson.
Stansted is an odd airport for EZY - pushing markets in which Ryanair would struggle should be their advantage, but is that market big enough?
The mantra is they will only open new routes in which they know they can win, or as a strategic play for the long term. So really, anything can happen!