I sent an email to Beseada softworks and they replied with this
Thank you for contacting Bethesda Technical Support.
We appreciate your interest, at present there is no information about a next gen installation of the Fallout franchise. When any news does emerge, you can expect it to be announced at http://www.bethblog.com/
Bethesda Technical Support
Hi will you be making a next-gen version of fallout 3 or new Vegas Myself a fallout fan have been playing since the fallout franchise started and now I ve got a next- gen console PS4 and I am missing fallout 3 already I think you should really take into consideration about making a next copy of the game Unless you ve got another episode to the fallout series up your sleeve