Are you referring to this “Expression pedal update” thread?
This message:
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Hi @Dave_Parker,
We have had to go back to the drawing board for the expression pedal. It’s not been easy to make something that goes beyond the average pedals, with more use cases and functionalities.
We will have details in the second quarter of this year.
Just a little more patience 
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tells me they’re making good progress.
So far I’m pretty impressed with this project. They’re not the first to fall a little short on the scheduled ‘deliverables’. I spent 28 years or so in corporate IT and independent consulting, so I’ve been involved in probably more than my share of missed deadlines.
Given that they’ve delivered on 2 out of 3, I have nothing but high expectations for the expression pedal. I’d rather have a delay than a misfire.