As reported on Tuesday, WWE is pre-empting WWE Main Event next week on the WWE Network due to its contract with Sky Sports to air the show. According to a source close to the situation, Main Event will not be airing on the Network for the foreseeable future and the soonest that it will return will be late summer/early fall.
The show will continue to air on traditional TV networks in the markets it currently airs in of course, although there are no such deals in the US. It is available on Hulu. The Network is unable to geotag shows, so it cannot make Main Event unavailable in the UK but available everywhere else.