I think I might be misinterpreting the statement.
If you mean this in the way that most RPGs are usually leaped over and people tend to focus on FPS or something, then yes. Sadly, some people who consider themselves "gamers" are usually those "dudes who like CoD and Madden cause they're HXC!" Nothing against the games; I, myself, enjoy playing CoD every now and then even though I suck at it. But a lot of people who get into video games do so because of genres such as FPS. So when they try to broaden their horizons and try an RPG such as, let's say, DA:O where you have to really think about your next move and customization and all that, they get scared and dump the game only to go back to their FPSs.
But I probably got this wrong...
If you mean pureblood (lol) RPGs are getting old and boring and new, and outside elements should be added in order to keep them fresh and interesting, then yeah, sure. I'm all up that. I would still like to have some pure RPGs out there just in case, like DA:O. Although...I'm not even sure if there is such thing as an RPG that doesn't grab a little from other genres. Hmm. Anyway, old RPGs still appeal to some people so don't forget that.
An example that comes to mind of a good mixed RPG is the KH saga. You have RPG elements, such as leveling up, customization, free roaming, magic, party members and so on. But you also got a lot of other genres mixed together, such as adventure and even a little bit of rhythm and driving, if you think about it.
So yeah, by all means, go ahead and mix it up. But please, make sure you do it right and fully. Brink tried to implement the whole customization element and god, it failed miserably. You could only choose 6 different pre-set body types and like 10 or 20 different pieces of clothing. Despite my best attempts, I could never come up with a character I was contempt with. I know, I know, "But it's a shooting game! You're not there to create a DA:O-like character!!1!1!" Yes, but since we have that customization element in there, I feel like I should. So if it doesn't work, either fix it or scrape it off. Don't give us a half assed game with bits of other genres.