Last month, YouTube announced it now supports original video resolution from 360p all the way up to 4K.  That means even videos shot in sizes intended to be displayed on 25-foot screens can be uploaded to YouTube.This was an exciting announcement in terms of what could be coming for online video in the future.  However, many people are wondering how far away that future actually is.  Today, practically no one can view 4k videos over standard broadband connections, and it's fairly safe to say that the vast majority of people around the world don't have 25-foot screens to view them on.This has been a hot topic across the Web over the past few weeks.  Other people have been quick to point out that the ability to upload 4k video isn't that exciting given the fact that YouTube only just recently (a few weeks after the 4k announcement) boosted the length of videos that can be uploaded to YouTube to 15 minutes.Regardless of these limitations, it's still interesting to ponder what might be coming for online video in 5 or 10 years.  I think it's safe to say that it won't look the same as it does today.  The demand is too high and new technology to enable better viewing is constantly launching.It's doubtful that the first use of the 4k upload ability in YouTube will find favor with the broad YouTube publishing audience, but I'm sure there is a niche out there that will find a use for it.  Or perhaps there is already a specific publisher or organization who has their eyes on the feature and might even get special privileges to increase the 15-minute upload limit.  Of course, I'm just speculating.What do you think the new 4k feature means for online video publishing and viewing in the short-term? Long-term?  Leave a comment and share your thoughts.You can check out some of the videos uploaded in 4k format in this YouTube 4k playlist.Image: YouTube.com