Hi everybody! Nice to meet you!

First of all I'm sorry if this isn't the right section of the forum for this topic...my apologies...

Actually I'm playing FF XIV on PS3, and I have a doubt...I heard that with next expansion PS3 won't be supported anymore as a console to play this game.
So I decided to transfer my datas on a PS4, but before buying it I'd like to know if a subscription to Playstation Plus will be needed to play FF XIV on a PS4...
I don't have found any info on the web about this question...

Can someone help me?

Thank you for your attention!