It still remains to be seen, why they need the bi-valent vaccine.

My guesses are:

• they need a bigger payload than one mRNA for one "virus" can accommodate, without raising A LOT Of suspicion

• bi-valent vaccines will do this : double the mRNA payload

• some of the best gene editing vectors are based not on coronavirii, but fluvirii protein backbones

• even if the above isn't true, they (NIH, DoD; Moderna, etc) have been hungering to get a bi- or multi-valent multi-payload mRNA jab out there for the past years. It's in most of their plans, discussions and open speeches.

My guess is that the goal is wholesale, yearly, uninterrupted and continuous gene editing down to at least ethnicity/gene group level, if not individual level. This is in fact what they often detail in their "future scenarios" (like WEF's vision for Moscow 2030, it includes yearly gene editing vaccines as standard for city dwellers).

So the first global mRNA shot (covid-19 juice) was just the first preparatory step to get the useful idiots, "safe and effective" PsyOp, legal framework, manufacturing scale and general acceptance in place.