Of course the question is: what is a reset, really? Most likely Bitcoin Core gets a fresh -testnet4 and then drops support for the current testnet (3) in a later release.
That doesn't stop anyone from continuing to mine and degen on it, but they'll have to maintain their own fork of Bitcoin Core just like any other altcoin.
Though it is very attackable, because it is so similar to Bitcoin but ofc massively outclassed in therms of hashrate. Also has the consensus difficulty reset bug that also would make it suck for actual value. Also also lots of bitcoin devs have massive bags of testnet sats they could dump and crash the price. Though I think we're all in agreement this is dumb anyways so 🤷♂️