We can't filter by price, but sorting by price is still possible. It would be nice to see (or at least have the option for) cards' lowest prices being displayed in searches rather than whatever's most recent; the former seems a much more useful system than the latter.
The edition the deck uses is the latest printing (excluding special sets). It's not possible to change this at this time.
Aw. Can I ask why this is the case? Did Sebi or another developer give us details about this topic previously?