Several things makes it impossible for me to travel anywhere. The first and foremost reason is due to my studies. I would've missed too much in School. Another reason is that I can't afford it.
In terms of Steemfest 4:
We'll have to wait and see how things develop. Both in life and on Steem/Steemit. It would be a really cool experience, but I haven't travelled anywhere in like 20 years, so I can't say if Steemfest would be my first pick, if and when I have the chance to travel.