I'm diabolically playing devils advocate of course, and somewhat disrespectfully, given the Christian nature of the festival (please note: other deities and pagan rituals are available). Of course there are still Easter beers, but we don't get to hear about them very much. The Belgians (and when it comes to beer, it's always the Belgians, isn't it?) still have a tradition of paasbier, although it's hard to say that this refers to any particular style. It fits in with the tradition of brewing festival beers that something special might be created, but does it fall into a defined style? Does it 'eck as like (as we say in Yorkshire).
Scandinavia has its paaskol, and Germany has its osterbier, but again, these don't refer to particular styles - they can be anything from pale lagerbiers to dark ales. What might go well at Easter in the UK? You may as well ask what goes well with chocolate eggs.
One of the great matches is Belgian kriek (cherry) beer. A lot of connoisseurs can be a bit snooty about the more commercial offerings from Lindemans, Mort Subite, St Louis and Timmermans, but the key here is the sweetness. To match a beer to a dessert, it needs to be a bit sweeter to work well. We can gaurantee that the blend of sweet cherry beer (it doesn't work so well with the unsweetened artisanal offerings) and chocolate is enough to convert any sceptic.
If you think that fruit beers are somehow a bit sissy (you're wrong, but we'll move on), then let's go to the other extreme - chocolate stout. Both these beers have the rich, smooth taste of chocolate, but only one is made with it. The Wells & Youngs beer actually has chocolate added to the brew kettle, the Brooklyn version is a heavy imperial stout, although has a rich, sweet drinkability to it. If pairing it with chocolate sounds like too much of a good thing, then serve it accompanying any creamy dessert - creme brulee is perfect. Or if you fancy something even more outlandish, put a scoop of vanilla ice cream in your beer for a grown-up version of a Coke float. Watch out though - the carbonation in the beer will make things get quite lively! You can see how it works in this video from Zak Avery, recorded a couple of years ago: