actually there can be 3 kinds of upgrades / buildings
- the ones we get with free2play
- the ones which requires diamonds but not real money
- real money only
and
- if I remember correct all current golden upgrades where free2play (with a waiting time up to 150 days after the event)
(my Panda Shrine needs 73 more golden upgrade fragments on live)
- but there are buildings which are real money only (Key Masters Workshop)
- and some are can be done without money and just diamonds (golden league only buildings like Trailside Smithy)
so the important question will be:
will that new golden upgrade the first real money only upgrade for a main event building