Wild horses wouldn't make me vote Conservative, but I think the idea of the English Bac is a good one. Pupils won't need to take any extra qualification, but it will credit them for a certain combination of subjects. I don't actually think it's been devised for the pupils' benefit, but to highlight those schools achieving high GCSE rates in league tables by entering pupils for NVQs and modular exams, etc.
If you look at the BBC league tables, they show the percentage of pupils achieving "C" in at least two sciences and a MFL, so the EB will be very similar. You can take it or leave it, but (for me) it's important how many pupils achieve GCSEs in sciences and a MFL.