Pokemon go put beldum as the next cd pokemon in their website a few minutes ago accidently.
https://pokemongolive.com/events
The shiny sprites were also updated for the trio.
Meteor Mash was added to the game a month ago.
#HYPE
For the images and everything go HERE: https://mobile.twitter.com/communitygonews?lang=en
@apavlinovic the time is now!
that shiny is perfect
Very good shiny, can’t wait for Mega!
Ya it will be epic thanks for using the link
awesome, im only 8 candies short for getting metagross. guess ill just wait till Beldum CD to finally get one lol.
I evolved my Meta not too long ago and now I instantly regret it 
Yep now we know
i was going to evolve it today, since i caught a beldum and was going to rare candy the rest, barely dodged that bullet.
Wow that was a skim of death 
I’m glad I decided to buddy up with Bagon instead of Beldum last month.
Deoxys is here
I still haven’t evolved a Metagross or Salamance.
I’m holding out for a better Bacon than a 93% 15attack
I’ve got a 337cp 100% and 723cp 93% 15 attack Beldum that have enogh Candy for both now but want it to build up a lot more for Power Up the 100%. Been walking Beldum for quite a while now.
The CD will make me finally evolve both.
If someone doesnt believe me…
Then if I am wrong, suspend me.
I am right.
Well id hate to see you suspended obviously. But 2 things:
1: On your link, if i click on either of the 3 shown community day dates i just get directed to the september one. Cant seem to find anything about Beldum. EDIT: just read the GOHUB post. i get it now 
2: News - Official Megathread you already said here it would be Gastly (Gengar).
Either works for me. The only CD i look forward to at the moment is for Bagon so i can finally make a good salamence. But its starting to get a bit confusing as to wich one its going to be now.
Either Gastly CD with Shadow Claw Gengar or Beldum CD with Meteor Mash Metagross is great for me.
Not to mention shiny Metagross looks sick!
No suspension. We only got 6 days until Ultra Friend status.
I said a rumor
Both go hub and community go news found it
If not October, definitely December. Oh boy, I am ready. Shiny Metagross is the 2nd best shiny form, only behind Rayquaza. Not to mention he’ll finally get a proper moveset!
Personally i think Beldum will be in December, after Cyndaquil in November and whatever is coming in October.