I think Disney/Marvel have full control of the show at this point so if they ever decided to do some home video releases, they might want to release the full series.

It's never coming to DVD. It's not a current show and there isn't a high demand for it on DVD. If Marvel was planning to release it onto DVD, they would have done so around the same time as the other three seasons.
All four seasons are available on iTunes (Season Four is $15) and for
free on YouTube.
Here's the link to all four seasons on Marvel's YouTube Channel (which I previously posted):
http://www.youtube.com/show?p=DmJMgpU45BE&s=1

Yea season 4 still isn't available
It really sucks that they just did seasons 1-3. Season 4 has the most exciting ending out of all 4 too.
I bought the released seasons on dvd too, and I wanted season 4 on dvd so bad, I even found someone who had it personally recorded and had them burn me a dvd with no commercials
Got a cover made and everything too, so it's just like I have it for real
Course the quality isn't quite as good, and there's that annoying WB logo in the corner.
Even though I have this version of season 4, I'd still buy it if they released it.

All four seasons are available for
free
on YouTube, which is nice, though sometimes I wish that Season 4 was also on DVD.
Here's the link to Season 4 on Marvel's YouTube Channel:
http://www.youtube.com/show?p=DmJMgpU45BE&s=4

Available on Netflix Streaming.

Season 4 is available on iTunes, but only available for America.
I don't know what the quality is like, unfortunately.

I don't think it is. It's too bad. I have all the ones they released.
"Time to die! Like a man!" Venom Spider-Man Web of Shadows

Is season 4 not coming out on DVD at all?
Really annoying if i wont be able to see the last episodes of the show when i feel like watching my Evolution DVDs in the future.