When I have visited Jellyrolls - many times there has been a large group of DCP 'kids' (young adults technically) hanging out by the bar, dancing near the pianos, etc - especially later in the night.
They may not be toddlers but still a young demo (and little kids arent going there late at night anyways). The new spot is going to have to have this level of fun for this group to pay those drink prices. While I like it, I don't think a POFC style laid back jazz club is going to do it. Not the same w/o music, but Abracadabar is cool and does not pack in the younger set for those pricey drinks - and is often quiet in general. Hopefully, they can maintain some of the upbeat vibe, maybe even dueling pianos or piano bar singalongs on some nights.
Jellyrolls leaving the bubble is going to be rough for them - too bad Springs wasn't an option.