While the Govt. is lengthening the period before immigrants can gain indefinite leave to remain, it's also about to offer an 'invite only' programme by which leave to remain can be gained after only three years (two years less than current arrangements that stand, for now, at five years).
How do you get invited to go down that route? You need to invest a minimum of £5m in the UK (in a way acceptable to the Govt.).
Just to be clear:
we are selling UK residency rights to the rich.