Microsoft will provide critical updates for XP after April 2014 deadline - for Premier customers only
The bad news is that a Premier Support contract and the custom support agreement make for an expensive combination and isn't really feasible for SMBs or even most fairly large businesses. Mary Jo Foley talks about it in a recent column:
http://www.zdnet.com/microsofts-custom-windows-xp-patches-not-a-panacea-7000020074/