Kenshin Dragon Quest came out a couple years ago in Japan, and had a lot of potential, but was kind of lame, because Enix supposedly built the entire game within 3 months of deciding that the technology in their Revmote-style sword was a good idea. It apparently didn't even have any story, or anything good that Enix is known for, beyond a Dragon Quest logo on the box. Because Enix thought it would sell based on the Revmote-style gimmick and brand name alone.
Dragon Quest Swords on the Revolution/Wii has been a no-brainer since the moment the Revolution's secret was announced. If Enix has been working on the game since they heard of the Revolution, it should be fantastic. If they just slapped it together because it was so obvious that it required zero thought, then it'll suck massively.
The name "Dragon Quest Swords: The Masked Queen & The Tower of Mirrors" suggests that this one will have a plot. Unfortunately, it might also suggest that there's only one dungeon (tower) in the entire game.
With Dragon Quest 8, there seems to be a building demand for freshness in the gameplay of the DQ series. Dragon Quest Swords could very well become the new standard for Dragon Quest, assuming the game has the required depth and addictive qualities of the original. Unfortunately the game won't be able to boast about it's graphics. Not even because graphics apparently aren't the Wii's strong suit, but because Enix hasn't apparently hired anyone big like Level 5 to provide the graphics. But there's a chance (best case scenario here) that they'll be as good as Dragon Quest 8. Enix supposedly got one of their other teams to reproduce Level 5's DQ8 graphics on the PSP, so they should be able to do the same for the better-than-PS2 Rev/Wii.