I think that it could be possible for sequential to update this with a new sequencer mode. Turn it on in globals or per patch (maybe call it 303 mode?) and then lose (some?) of the automation lanes. This means that those who want it can turn it on and those who don't can keep the existing sequencer. This would be a fun addition to the synth which would add a whole new vibe to this monster!!
adding in options to change the envelope shapes (again maybe a globals setting) would also be amazing but I guess we won't know unless it happens.