There are a couple of independent food suppliers near me who specialise in higher quality pre-prepared meals like pizzas and pies etc. - they stock organic items and vegan items too.. If the main supermarkets start using these ideas then they will lower the quality as they always do.
I wouldn't hold your breath though, since I am aware that the supermarkets here go to great lengths to put dairy alternatives in fairly hidden locations in their shop layouts so that the people who will only by them will eventually find them and continue to be customers, but the majority of shoppers will never even realise that the alternatives exist..