I don't know about gold, I think the next batch of tester may only be able to use FP+ if not the next batch then soon. All the new QA and FP+ official Disney info makes it clear if you are FP+ eligible no FP. It's coming.
Also my trip is in Oct and I have links for Magic Bands and FP+ but when I click on them I get a pop up that explains that I am not yet eligible. We'll see when I hit the 60 mark in 22 days an check in what happens.
I have linked my tickets, I have a DVC room only at the BWV. I see alot of people worried about linking the tickets. I am not worried and here's why. It's all about eligiblilty. Everything in the FP+ official information says that if you are eligible for FP+ you basicly have to use it. To be eligible you have to have everything link and an email invite until full roll out. So if I don't have an email invite and my tickets are linked I am not eligible for FP+ and use the old system. If my tickets are linked and the full roll out happens I have no choice but to use FP+. I will always be able to use one or the other. For people trying to avoid FP+ don't link your tickets. But if you want to use it, link them.