It may go away or it may not. Mine still does it at 10,500 miles. One single slightly-hard shift between first and second and then it won't do it again until the next morning.The harder type shift will go away, mines all smooth now at 4k miles.
I also have the clunky shifting feeling mentioned a couple of times in this thread while semi-hard braking. Not hard-hard braking, but slightly harder than normal. It feels like a combination of engine braking and downshifting, the hybrid clutch engaging to recharge the hybrid battery, followed by the engine cutting off. It feels like they attempted to program all these processes to make it feel like a smooth and normal braking experience but missed the mark. I'm betting this is something that non-hybrid owners aren't experiencing because I'm thinking it mostly has to do with the hybrid clutch engaging to recharge the battery.
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