I can say that F1 coverage in Hungary is quite lower in quality compared to England. I watch Sky whenever I can. But we do have one guy I appreciate a lot, who is IMO the best expert here and really understands things. He is Gabor Weber, occasionally competing in WTCC and a GPL world champion.
He sketched a draft on how could the Hungaroring could be modified in a sensible way, here it is:
He is only an expert, so this is not the official plan by any means, just an idea.
He thinks the T6-T7 chicane would be a prime position for the second overtaking spot. Indeed, it requires quite a hard brake and is a do-or-die situation – there is no option to claw the position pack after it due to the sequence of corners following. The chicane itself would spread the two drivers quite much due to the layout, I think similarly to the Inner Loop on the Glen.
So Weber would increase the length of the straight before the chicane. But he would – sensibly – also keep T4, which is a challenging corner. So the new section would basically grow out of the current T5, that’s why it looks somewhat ‘Mickey Mouse’ style.
Also, he argued that that is the only area around a track, which is relatively empty and would take an extension upon it. The other straight after T11 has a large observer area on its outside.
My opinion is that – above space limitation considered as well – is that the short straight before T3 could also be extended to finish with a 150-160° hairpin and then go back up the hill in a Hockenheimring-like arc to join the straight halfway thorugh – I’d also leave T4 intact, I love it. Or it could go more or less straight back and rejoin the straight with a proper corner. T2 might has to be modified a la the Loop and Aintree in the Silverstone Arena to allow for closer competition out of the corner towards the new hairpin.