There's really no way they'll be able to implement sweeping income policy changes in that short of a time
It's not really sweeping changes though as it is just raising the financial amount. The changes came in 2012.
In 2012, they wanted to put it through on 26k (the poverty cap on the benefit Tax Credits, for 1 child) but then settled on just over the couple rate poverty cap for Tax Credits, which is 18k.
As they have just brought in the 2 child limit for the benefits Tax Credits and Housing Benefit, based on MAC reporting; and the changes to public funds for those subject to immigration control and the 'making work pay' benefit cuts under the Welfare Reform Acts, I can't even guess what they will set this new amount at. Can anyone else? TBH, I thought they might bring back the Primary Purpose rule instead, but didn't like to mention it on here.
The various EU routes are the highest number of migrants to the UK (EEA citizens and non-EEA citizens) followed by the family route visas it seems.