I think the move to Midi 2.0 is starting, but its a long road.
I posted a while back about a new DAW (Mutlitrack Studio) that supports Midi 2.0, which is an interesting and vital step.
Generally, everyone sees the need for Midi 2.0, and I do think the spec is very comprehensive.
but its a bit chicken n’ egg for many musicians - until there is widespread adoption, you dont feel the benefits, but widespread adoption, well needs people to adopt and support it 
its great that Midi 2.0 can live side by side with Midi 1.0, so at least incompatiblity is not an issue.
I think MIDI-CI will be the thing that starts the momentum, in particular, I know a few products that want to bridge midi 1.0 and 2.0… the idea being to use meta data so that a hardware product (like a midi router) can broadcast MIDI-CI for ‘legacy’ hardware.
This I think is almost vital, as it kind of brings MIDI 2.0 benefits to potentially thousands of older instruments, which are still cherished and loved - that is where ‘adoption’ can start.
as I said a few things are trying this now, as they are in thier own way collecting the required meta data - e.g. Im looking at this with Electra One.
but its a tricky area, with no standardisations on how this meta data could be stored - personally, Ive started ‘importing’ from a few different sources.
then the other side, is (hardware) manufactures are having difficulties releasing new products due to the pandemic.
I’d guess as this eases (next year? namm 2022) we wll see a flurry of new equipment, which hopefully will included midi 2.0 support.
similarly, Id suspect the next release of daws might be eyeing up the midi 2.0 spec.
anyway, midi-2.0 is on its way, but it’ll take a while for widespread adoption…