In simple terms, unless a new large-scale QE program or direct money printing is announced, markets are unlikely to react strongly to new monetary policy from Central Banks.
Stocks have very likely just entered a multi-month bear market. Few investors have caught on to this yet, but when they do, there will be a selling panic, possibly even a CRASH.
2008 was caused by derivatives based on consumer-focused assets (houses). The next crisis will be driven by derivatives on government-focused assets (bonds).