How smart would it be to sell ETH for BTC now to take advantage of potential combined split BTC market cap?

I'm trying to think some 4D chess here.

Let us say that Bitcoin splits on 1st of August.

Wouldn't it make sense to sell ETH and buy BTC shortly before August the 1st anticipating this?

I will explain my rationale:

1) People are scared of what will happen to BTC, sell it for FIAT or other cryptos like ETH before Aug1.

2) You buy BTC cheap.

3) You keep private keys.

4) Split happens.

5) Now you have coins on both chains.

6) Eventually the market recovers. Both chains grow.

7) You have now more money due to holding both cryptos.

Why would this not work?

Cryptoflame