It's not even really the pedals that are the issue. It's not difficult to push this type of ultralinear amp into square wave clipping, which results in dead amp. There is also no way that modern tech will be able to stop this from happening. It is possible to re-design it to avoid it happening, but it wouldn't sound like a Major, either.
We're not talking about a standard Marshall that has been beefed up to run 200W here. The dual rail supply, and ultra-linear operation is a radical departure from normal Marshall designs, and is at it's best in clean amps. Distortion in the power-stage is where these things go wrong and die young. Unfortunately when ones preamp is already distorted, it is hard to hear when this is happening. This is why ultra-linear operation run to this level, with relatively low-specced transformers was never particularly well-suited to guitars. YES, they are a truly awesome beast, but unless you have respect for them they are just waiting to go wrong.
Given the unreliability of the amps, mostly down to people not really knowing how best to use them, I'd put a lot of money down on them never being properly re-issued. There just isn't the demand for a commercial venture to go all-out on such an amp.