You mean Kunos should do it exclusive, classy and full of fanfare like what PD did at expensive place, parties etc ? I don't think that's really needed.
A simple presentation similar to a seminar, with professional commentator, streamed online is all what it takes IMO, Kunos can do it at several cities in Europe and US, small invitation to well known AC regulars around the area. What matters most is the stream of the gameplay of AC players racing each other from different cities, then devs could do live Q&A via live chat with each cities. Invite modders and Youtube personalities ( racing sims ) near the area to do a special coverage and maybe partake in the driving too.
Oh, I meant 6-10 TV+PS4+wheel/rig