I don't think it's used games beeing a problem - those people trading in used games, usually put the money back into other games, if game-publishers really saw this as a big deal, they'd just do like movie-companies do, and demand that the stores selling games, should not trade in used copies, or rent out games before the game had been 2-3 months on the market.
Server-costs for used market upping publisher-bandwith, is covered tenfold by online-passes, wich is much more friendly that 24 hour online connect to access your game-pass.
I feel this is just MS and publishers who wants to ensure people are online, so they can sell us more DLC and similar. And instead of making it worthwile to connect online by delivering solid content, they make it a necessity to connect by disabling our game-acess unless we go online.
It worked fine on Xbox Live memberships, this will work next generation aswell.
Unfortunately, this is not the only issue I see.
The most major problem is with the licensing, we don't own the games anymore.
examples:
EA is usually closing Tiger Woods 2013 servers half a year after 2014 come out, this generation it is only multiplayer wich is gone wich usually ain't such a big deal since the comunity will be much smaller that late, but next-gen on Xbox you'll loose full access since games are also in the cloud - so two years down the road the game is useless.
Another example;
Sega makes a mediocre Ironman game, Activision buys the license from Marvel.
Sega don't own the rights to Ironman anymore, what happens to the game you are licensing from Sega, they no longer have the license to distribute Ironman.
I think this is the reason why MS have been able to convince publishers to do this consumer-hostile DRM.
In my examples, EA can now force their userbase to upgrade, and Activision can complain that there are unlicensed competing games beeing distributed, and force their competition over to them.
And they have a direct line to consumers to sell them more content and advertisement.
I really hope Sony isn't doing a similar scheme. Luckily they've allready confirmed that you don't need to connect to internet to play a game, it's something optional.
So let's hope they're continuing the trend to be a more content-driven company.