MEPs are elected under a proportional representation system (albeit regional). So less of a need really.
edit I may have misunderstood your question. If you mean actual platform of the parties, I would suspect it will become pretty obvious if/when it happens.
Yup, but would be good to know who I should be voting for to keep out a Brexiteer, could end up being a Pro-EU Tory might be the best bet to keep out a Pro-Brexit party member, hope this makes sense!
MEPs are elected under a proportional representation system (albeit regional). So less of a need really.
edit I may have misunderstood your question. If you mean actual platform of the parties, I would suspect it will become pretty obvious if/when it happens.