A lot of the inventive problems with the network right now are due to the anomaly of the block reward being larger than the transaction fee revenue. Subsidies always cause economic distortions, and Bitcoin is no different.

In a future where the transaction rate is high and transaction fee are more important than the subsidy in terms of miner revenue then things start to look a lot different in terms of the miner/full node dynamic.

Perhaps it's better to get the network to that state first as quickly as possible because that's what needs to happen for long term viability of the currency anyway, and then see what needs to be done.