Isn't World of Goo the only 1,500-points game? I highly doubt this will cost that much, or that there will ever be 2,000-points games. That's getting too close to retail prices, part of the point of WiiWare is cheap games.
I haven't even seen the video yet but especially if this is closer to a remake than a sequel then I think it will be 1,000 points. Even something like Mega Man 9 was 1,000 points if you don't count the DLC. But I guess we'll find out next week.