No, no history can't repeat itself. Mainly because we've never overhawled a 12 point gap on United before, so there is no history.
We've looked pretty poor for most of this season if we're being honest. The attractive attacking displays of last season have almost exclusively disappeared. Even when we've been winning games it's rarely been with style and room to spare, pretty much half of our victories this season have been by a margin of just one goal. This time last season we'd won 18 league games, but only 5 of them had been by just 1 goal, this season it's just 15 wins, with 7 by a 1 goal margin. Combine that with the fact we've scored 48 league goals this season, compared with 63 this time last season and you can see where the problem lies.
We've been much worse than we were at any point last season, there's absolutely nothing to suggest we're even remotely capable of pegging United back. When you consider that 4 of our remaining 6 away games are against Everton, United, Spurs and Swansea you'd have a good argument for the current 12 point margin expanding rather than contracting.
Our main chance of success this season is now the FA Cup, Leeds won't be easy but a home tie against a lower league side should mean we make the quarter final. Then it's all about a little luck in the draw (avoid away games against the likes of United, Chelsea, Arsenal or Everton where we wouldn't be favourites) and another trip to Wembley may be on the cards. If the "favourites" all make the Quarter Finals then you'd still have the likes of Millwall, MK Dons and Wigan in there for us to draw.
We need to accept the inevitable, and the obvious, United will be 2012/13 Premier League Champion's. They've picked up points consistently, even when they haven't played well. We've dropped points when playing badly. At least we know the outcome now, I'd much rather lose out on the title at this early stage and have time for it to settle in whilst the season is still progressing than to lose it after our season has finished, when I thought we'd won it. It still hurts, but nowhere near as much I'd wager.