Ok, my 5 cents.
First, it's an opinion from almost daily GvGer and a player that plays FoE pretty much only because of GvG. I'm lucky that recalc falls into my daily timeslot that suits me really well (like, REALLY well, an hour earlier or later would already be a bummer, anything else would be nearly impossible).
I'm also coming from a competitive gaming world, my connection is very fast, PC is top notch, I've got over 1100% att with almost 300% def for attacking units, so you can imagine GvG for me is quite easy, even if we're severely shorthanded in terms of PC players active at GvG, we're doing a good job at sticking it at the largest guild on our server, it's often like poking a single-cell organism. So yeah, GvG is fun, I like it.
However, I'm fully aware of why GvG is bad and will never be good, even with technical fixes, and kudos to Inno, with this new gameplay feature it seems they mitigated most of the issues that GvG has, namely a) removing a set time recalc, b) removing a siege speed importance and c) involving mobile players, even if that's where I personally do very well, I would still like other players to be able to participate more actively.
So far so good, WIP idea looks fine, seems like Inno is willing to listen for suggestions too, if it proves to be what it promises, I'd happily live without GvG altogether. Even if poking that single-cell organism can be loads of fun, doing the same thing day after can also become boring.
And for those people saying that 5% of GvGers are irrelevant, would you also say that ~10% of paying customers are also irrelevant? If you know that a large portion of those 5% are making those ~10% of paying customers, and most of that 5% are also long term players, then your statement would be shortsighted. Inno obviously isn't that shortsighted, that's why they are keeping GvG alive, even if they would shot that monster a long while ago, if it's not for $$$.