Realistically the only way Homepod v2 could be made any better (the speaker is already amazing) would be by removing Siri - which is never going to get better with the way they have developed it - we're now coming up to 9 years since Apple introduced it, and its still utterly awful compared to every single other major voice assistant.
Realistically, no. Removing Siri would be a huge disaster. You probably don't know that Siri is the main user interface to HomePod, and it works extremely well for cuing up music.
What makes HomePod great is it's always on, and always ready to play music with only a verbal command. even from 20 feet away with HomePod playing music loudly. An amazing feat and superb underlying technology to pull that off.
I've had my HomePod for almost a year now and it's a delight to use - every single day. From your post suggesting Siri should be removed, I suspect you've never owned one.