No, no, it was just pure speculation on my part. What I meant was that if they want to succeed in the US, they'll have to start running those PVs on music channels ahead of Lollapalooza. Or at least right after the festival. It wouldn't make sense if they do the big show and the next time you hear from them is sometime before xmas.
What I'm guessing is that all of the songs that will get new PVs (Rusty Nail (re-recorded), Kurenai (re-recorded, has an English version already), Endless Rain (re-recorded, already half in English), I.V., Jade and Born to be Free) will be in English, the Best-of album will be in English and all that will go towards marketing in the US (and hopefully Europe), which would have the biggest impact if it'd happen around Lollapalooza.
Again, this is just pure speculation on my part but that's what I'd do.