Hitting the reset button on the casual investors' memories, getting a bunch of news in favor of Bitcoin and a heavy dose of holding and market manipulation and there's a high chance that you'll see the pump you want.

Keep in mind that for a large part of the recent rise it was because everyone and their mom who owned Bitcoin prior to the pump was holding as tightly as they could, causing a restriction in the supply which was completely artificial and unsustainable in the long term. This attracted more individuals and the FOMO began to spread across the internet, prompting more money and new people to invest, causing a bubble. Then the market began to slide as some holders sold, and then it sold more, then more rapidly, etc., to where we are now.