It's going to boil down to being a state by state issue.
We've already seen it and seen why even here on Arfcom.
People from Texas say fuck NY and fuck Kommifornia. Which, I don't agree with - but they will barely lift a mouse click to help another state fight for it's rights.
There are way too many D's from mid-west//west pro-gun states that know they will get tossed if they go anti-gun - Colorado put that into writing. The only thing the feds can/will do is make it more difficult for items they can control - NFA items.
The only way people will become pro-gun is if they're around guns. Which is why gun states will stay gun states and anti-gun states will stay anti-gun states. Sure, you'll get the handful people from california or where ever, but it will never spread enough to be a majority again.
Where as an example of Ohio, we're repealing more and more anti-gun laws. We're having record people interested in CCW permits / receiving those permits. Anti-gun people are getting tossed - Mahoning just tossed last election someone who waited till the last possible day to sign CCW permits. Now the new sheriff, Greene, is getting them turned around in 3 days to a week and has no problems with NFA sign offs. Hopefully next year we'll get rid of the 31 round cap. Not a big deal, really, but it's symbolic.
The best thing we can all do, as a community, is come together and help the states that are in danger of falling to anti-gunners. Colorado is going to be a bastion. Anti-2A struck first. We struck back. Now we have to finish the job, get rid of the governor in the next election cycle. Get rid of the Anti-2A state senators and repeal the bullshit laws. We have to challenge the laws on the federal level - which, we all know will take forever to do, but we still have to because that will be the only long term protection we have. And finally, we have to get someone pro-gun into the WH.
Edit:
I donated and have great interested in the Colorado fight, as I have property there.