The current £15,000 ISA limit is to be increased to £15,240 from 6 April 2015. Remember that the 50% cash ISA restriction was abolished from 1 July 2014 so that any combination of cash and stocks and shares can be held within the ISA wrapper up to the overall £15,240 limit. The Junior ISA limit increases to £4,080 from 6 April 2015.
In the 2015/16 tax year individuals will be able to take money out of their ISA and put it back in within the same year, without losing their ISA tax benefits as long as the repayment is made in the same financial year as the withdrawal.