I just returned to ARR and I still have my relic weapon. With the expansion coming out, should I still work on my relic +1 and zodiac weapons? Or would I be wasting my time and money because of the expansion?

Someone said that there would be a new weapon set coming out and that the relic and zodiac weapons would be obsolete and I would be better off saving my money and tombstones because I could just go straight for whatever the new weapon and armor set is.

So I'm confused. I just need to know. Is there a new weapon and armor set coming out? If so, should I continue working on my relic +1 and zodiacs or just save my money and wait?