I don't think they'll put the HD version on a disc unless they add features from the Wii version. If it's download size, then the disc is just added costs.
Report - Only 6% of Gamers Download Content
According to a new report by market research firm NPD Group, only six percent of total gamers in the U.S. have downloaded content through home gaming consoles.
How's that for a reason to put the game on a disc?
Personally, I find that survey a little suspect. Where did they survey? What was their survey size and their age range? What consoles did those surveyed own? Does "downloaded content" cover both DLC
and digitally-distributed games or just DLC?
I'm sure the numbers are low, but I find it unlikely that we would keep seeing all these digitally-distributed games and DLC if those purchasing them really
were that low. I'd also point out that you can make statistics say whatever you want to say, and it's in NPD's
best interests to skew a survey against digitally-distributed content
because they don't keep sales numbers for digital content. No one would purchase NPD's services if games were drifting towards digital distribution.
As for JAM, PS3 and 360 owners are far more likely to purchase a game digitally than Wii owners and there's no brick & mortar to go through, so I don't see how this "study" would prove that it's not worthwhile to go-digitally only for those versions.