What's the point of a google coin?
If it's centralized and controlled by them, that takes away a huge benefit of bitcoin so why would anyone switch over to google?
So de-centralisation is the most important property of bitcoin? People will transfer to any cryptocoin that's more convenient, if that's Googlecoin, they will go there. de-centralisation is only an issue for certain political aims.
For me the answer is yes. The reason is trust. With centralised you have to trust a few people/bank/business/government.
Unfortunately though Bitcoin has failed in it's goal, it currently pays a $Billion+ a year in new coins & fees to miners per annum to decentralise control and process transactions. However expensive asics and pools have centralised that control. So now all Bitcoin has is a very, very expensive (Yes 10% inflation is expensive), painfully slow and archaic transaction processing service. Thank God for first mover advantage...
Proof of Stake systems, which allow people to process transactions & decentralise the network on regular PC's, at Mastercard/Visa volumes at faster speeds which are resistant to even 90% attacks such as NXT are far superior. But it may take a security event, such as another double spend by GHash.IO for people to make the switch to the new superior system.
The other main advantages of Bitcoin imo were 'privacy and freedom' & limited inflation.
A properly announced and distributed POS system (Which NXT didn't have unfortunately) will have no inflation and if it implements a zerocoin system will have privacy and freedom too.
So the USP's of Bitcoin will live on but just not in Bitcoin unfortunately. Which is why I think Bitcoin will be replaced by something better but I don't know how soon...