They can try to move to online-only, but there's a genie they can't put back in the bottle, and that genie is the concept of roleplaying games.
It's been said that a school can be nothing more than a bench with a teacher on one end and a student on the other. The same is true of a RPG: it needs a GM and a player, and all else is elaboration. And, in the end, the rule system doesn't matter either. (if it did, White Wolf games would never have gotten popular!) The basic concept -- one or more people deciding what their characters are going to do, and someone to decide if it works or not, using some mutually agreed-upon mechanism -- is independent of game rules, multi-billion-dollar companies, and everything else.
Roleplaying started, after all, when Dave Arneson hacked the "Fantasy Supplement" appendix of Chainmail into a set of rules he could use to resolve things when his players ventured into the first dungeons. They had a great time, and incidentally spawned an industry, with a truly primitive and sketchy set of rules -- any of us here, with however many years of experience playing RPGs, could probably write better.
20 years ago, TSR tried for a long time to make GMs into sort of walking speech synthesizers or something … "read the boxed text to the players" … and it didn't work. They caught all sorts of grief online when they tried to insist on some crazy copyright-related things, hoping their customers knew less than they did … that didn't work either. They could, if they tried hard enough, drive their customers away and get them to stop using their products, but roleplaying is a bench with a GM at one end and a player at the other.
So Hasbro and their "powerful brands" can go hang. They need us more than we need them. Roleplaying began with a bunch of guys around a table and some hacked-up wargame rules, and it can continue the exact same way.
The only difference between now, and decades ago when I got my first D&D rules in a little white box that didn't say "original collector's edition" on it, is that we're having this discussion in the first place.
Back when I gafiated from the industry, I had a 56k modem that rarely managed half that speed, and online sales were barely a thing. When I bought the compiler I built TableMaster with, Borland shipped me a big box. A couple of months ago, I bought its distant descendant to build TableMaster II in, and Borland's successor in interest, Embarcadero, emailed me a serial number; I downloaded the compiler off their website with my fast broadband connection. It's a different world.
And it's a different world for gamers, too. Decades ago (long before I thought it would be a good idea to become a software company the first time, let alone the second!) I used to go to SF conventions because, more than anything, I could spend a weekend with people who didn't think I was weird; now, I rarely interact with people who do. If we decide we want a set of RPG rules different from any other one out there, we can set up a forum somewhere and hash out a design. If we decide we want settings or adventures or cities or anything else for that game, we can do that too, and share them around. And there are a lot more of us than there are of all the game designers in the world combined. If only 1% of us write and share our own stuff, and if (per Sturgeon's Law) 90% of that stuff is crap, that's still at least one order of magnitude more than all the game companies out there have the staff to produce (or the market to buy).
So I'm not worried about what Hasbro does or doesn't do. We've never needed game publishers, not once Dave Arneson let that RPG genie out of its wargame bottle. If they sell stuff we can use, great; if not, it's their loss, not ours.
