There is going to be a fairly large amount of new generation gear supporting HDMI and DVI. 1080p is also gaining popularity, but it may be some time in the future before it is fully implemented in DVD's (blue laser DVD's may not even have enough space to support the full raw 38.4 Mbps required for the 1080p signal. So in raw form a 2 hour movie would need ~33.75 GB of space. And that is just for the video signal! Add in 7.1 channel audio and you add a lot more space needed.
So, this is really a technology that is at least 1 more generation away from happening. But, remember that the blue laser DVD's only took about 6-7 years to appear after DVD's first became available, and with compression like MPEG-4, it may very well be possible to have 1080p movies on blue laser DVD's (MPEG-2 disks would still be possible when splitting the movie onto 2 disks, which is surely possible, or using double sided, dual layer disks, which is also possible).
So what you need to ask yourself is, "Is it worth it to buy a 1080p display now, knowing it will most likely last you through 2 more generations worth of media formats probably lasting 14 years or more? Or do you want something that will possibly be obsolete within the next 4-6 years with higher quality format of 1080p being widely implemented?"