I don't think this is the start of something special for the Mackems, the underlying problems they have still remain, a lack of income either due to fans not paying enough and now small amounts of TV money.
Having said that League 1 is a terrible standard, doesn't take much to get out of that league, only have to look at how the 3 relegated sides from last year have done.
I can see them getting promoted to The Championship and then staying there for a number of years.