If that was to happen and we won't see a new ATH in the next decade, Bitcoin's ability as a store of value would be questionable.
But it kind of depends on what do you mean. We might never see another bull run (meaning a sharp increase in price) but we might see e.g. Bitcoin moving up slowly and gradually, not making anyone a millionaire overnight, but beating up inflation rates (i.e. becoming something similar to gold). Such scenario would probably be better for Bitcoin than the bull-run cycles, although it would attract a different type of investors.
More countries would legalise bitcoin in the future, however the market being run over the demand to supply the acceptance mind among common people will increase. For majority of the people they never understand what is bitcoin. First education and then teaching about the market moves were the best to make a person know about the value of Market being volatile.