No real world data,
But it's unlikely prices are falling, there's still a world parts / materials supply issue especially electronics and it's not likely to be resolved within the next 2 years.
Even if Russia / Ukraine / China and all the other World issues settle down or resolve the best that would happen is prices would not rise.
New car manufactureres are stop start with production at the moment and some cannot give dates for delivery of new cars, all due to electronic chip and other part shortages.
Additonal manufacturing plant for electronic chips is due to come online in the next few years, but guess what, they're stuck in the queue waiting for chips for the machinery.
If you've got gas, stick with it, it's not going away for years yet.
And if you want to make a Green statement, get Solar panels, ASHP is very expensive to run compared to gas and in a conversion may not give the performance required.