Oh great point. I would love to see some continuity in brand. Wavey lines, incorporating a new version of steam, same colors, etc would make a huge difference. That idea would also give people the mental connection with the steem blockchain.
A great example is the Esteem logo. It's got exactly what you're talking about.
I can't help but feel that folks like openparadigm who have been crating steem produce must feel a bit in limbo- I wouldn't bother making any merchandise with this new logo as I just don't see it lasting long!!! Seems to have not been received very well at all!