Re: Future updates to pvz gw2
Besides an extremely slow trickle of time locked customizations and abilities via Rux and the town hall chests, no. Justin Wiebe told us explicitly that there are no future updates. It is a challenge just to get game breaking problems fixed in a timely manner at this point. Resources are clearly allocated elsewhere (i.e. GW3 or whatever it is they are developing).
To balance the slight negativity I expressed above, it is really nice to see that some minor tweaks are still occurring here and there, like the recent, very welcome, changes to the sticker shop.