What are the changes being proposed to voter registration? I'd argue that the main difference than with the GOP is that we just had a mayor kicked out of office after not only illegal activities (which doesn't have anything to do with the register) but also voter fraud - yet if it weren't for the hard, unpaid work of local petitioners, none of it would have come to light. So clearly there are problems with the current system, and it's hard to have too much faith in the official statistics on fraud because, again, they didn't *think* there was voter fraud in Tower Hamlets. Who knows how widespread it could be?
Like I said though, I dunno what the proposals are.
Essentially it is a change from being registered by the "head of the household" where you live to individuals being responsible for registering themselves. Since under the old system the "head of household" not only put you on the register but also requested postal votes, there was obviously some potential for fraud (which has, I understand, been evidenced in about two places but isn't thought to be widespread by any means). It is probably not a necessary change, but sounds sort of sensible, if only to get rid of the "head of household" stereotype.
There's not likely to be any negative impact on voter turnout, since that is measured as a percentage
of those registered to vote. As those who can't be bothered to register probably also won't be voting I expect that, purely as a matter of numbers, voter turnout will go up a bit - though that doesn't necessarily mean that more people are voting.
The major problem with the proposal is that it is tied into the Boundary Commission review which aims to reduce the number of seats in the Commons to 600 or so, and to roughly equalise the size of constituencies
as measured by the number of registered voters as opposed to, say, by the actual population. Labour would argue this is unfair to them as inner-city Labour constituencies are typically under-represented on the register; while the Conservatives would argue that, well, if you want to equalise the value of votes then it is registered voters that matter.
Whether you see this as levelling the playing field or as outrageous gerrymandering depends which side you are on. Both sides are exaggerating for effect.