Looks pretty maxed out to me (with thousands tx waiting in tradeblock's mempool). I guess I must be making it up, then.
Anyone can activate a script and broadcast millions of transactions. When the cost to transact is near zero, the cost to spam the system tends to near zero as well. This means that the transaction backlog is to be expected under these circumstances and it won't change whether the blocksize is 1mb or 1
gb - as long as people can spam it for free or near-zero cost.