If they do bring in...
...some kind of 'net license, I expect the BBC to lift all restrictions on what players can play back their content. I will have paid for it, so I expect to play it on any device of my choice (PC, Mac, iPod, hacked xBox, whatever; on any OS of my choice [not just Windows]).
I am also interested in the pricing. At the moment I pay £12 for "all you can eat" and rarely need to use iPlayer as the PC records more than enough stuff for me (only when it has a glitch do I use iPlayer). So if there is a 'net license, will I end up paying more? I strongly suspect the answer is "yes".
And how does the costing work? Who pays? The owner of the 'net connection or the viewer? If three people share the same net connection, is the fee levied once or three times? What if one person watches three shows at once? Is that now 3 charges?
With some kind of 'net fee, will they (and by "they" I primarily mean the parasitic distributors) finally get out of the dark ages and agree a global license. If I pay the fee to the BBC (or whomever) why the hell can't I play their content from anywhere in the world?
Perhaps such a model is the beginning of the end for traditional broadcasters. Perhaps we'll move to a system where you pick a "agency" that has agree license terms and just get what content you want, when you want (e.g. Jamendo, Magnatune) without restriciton. Paying the appropriate fee, of course.
This will, undoubtedly, lead to the demise of some major player which IMHO would be a good thing. The majors have ruined many promising series in the chase for the current bottom line and jerked content creators around more than enough. I have no doubt the some content creators could "go direct" (e.g. Seth McFarlane, Trey Parker & Matt Stone) and allow their fans access to their content, to major label required.
Can you smell the fear from the MAFIAA yet? Perhaps this is what ACTA is intended to stop - free trade and an open market.