Bitcoin ETF: What happens to the Alts

Everyone seems to be expecting a Bitcoin ETF decision in January, between the 5th and the 10th. My question is what happens to the Alts, in this case, everything except BTC, ETH, and the stablecoins.

I see a few different scenarios:

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• ETFs approved (starting date some time later) and BTC pumps (front running the start date), at least for a while. In this case, BTC sucks fiat value out of the ALTs, and the ALTs fall significantly.
• ETFs approved (starting date some time later) and BTC falls (sell the news event), again at least for a while. In this case, ALTs dump harder, because that is always the way it is.
• ETFs deferred. This is more difficult to call, but I cannot see how it would cause the ALTs to rise.
• ETFs denied. BTC price dumps hard (likely to recover later because it is just business as usual and too may people BTFD), ALTs dump even harder, again because that is always the way it is.

So it seems to me that either ALTs do nothing in response, or they fall: there is no scenario in which they pump.

If this is right, then I might be inclined to sell my ALTs (none of which are real s**t coins, so I'd expect normal service to resume later) and buy back a little later? What do other people thing, I'd like to see other opinions.

Also, please ignore tax implications, these vary from place to place and we don't all live in the US-of-A :)

Thanks.