My guess is a majority of around 150/200 ish seats, and I don't believe it will be a “supermajority” whatever that means anyway.
I think that Tory voters are much more likely to vote Reform, which will help Labour, and I also think swing voters are much more likely to vote Labour rather than Reform.
I also think the turnout will be lower than 2019 and the % for Labour will be around 40 ish % the same as Labour achieved in 2017.
I think the % share will rise for the Lib Dems, Green and Independents but won't translate to won seats.
It's going to be interesting either way, and I will be watching it.
I also will be watching the Election, especially certain seats...
Jeremy Corbyn standing against the official Labour candidate in Islington
Nigel Farage attempting to overturn a 31,000 majority in Clacton
The Chancellor Jeremy Hunt holding a precarious 8000 majority in Surrey South
and probably a few others...