I hear 777 are flavour of the month on long-haul.
Personally, I wouldn't bet on MOL going over the pond. It has been the graveyard of many an airline in the past and right now is not the time to be opening up another competitor.
Vested interests in US and UK are well placed to ride out the tough times but a new entrant would have a hard time of breaking in, even at so called 'budget' prices.
The Ryanair myth of low fares has recently been shown to be a scam, in all but the word. Joe Public and his wife will not be lured by cheap prices and expensive add-ons for long.
With BA and Virgin offering flights to the US for around £250, MOL would be hard pushed to beat that.
He will offer it at £99 but with charges for checking in and actually carrying your bags, seat choices, meals, carrying duty free bags, debit cards, toilets etc. etc, it will be more like £299!