We cannot just sit and wait for the next halving time. Bitcoin price is not going rocket just because block reward is halved. We need to maintain a lively bitcoin ecosystem and make bitcoin more desirable for consumers.
i think it will happen naturaly, with so many people buying and holding bitcoins, when the companies realize this huge amount of money stoked with bitcoin users, there will be a "bitcoin rush" (like gold rush) to convince the users to espend this money with their goods.