It is to be seen if investors will likely pour another set of billions of dollars, just to catch up to speed with OpenAI, which, by that time, would have even further evolved.
There is a ray of hope that, as it so happens in this field, that old things are quickly obsolete and new things are the cutting edge, Sam Altman can convince investors to invest in the cutting edge with him. Then investors have a choice on an almost level field, to choose between people, companies and personalities, for a given outcome.
Sam will get billions of dollars if he starts a new company. So there's no issue of money. In terms of data and training models, look at Anthropic - they did train a reasonable model. Heck look at Mistral, a bunch of ex Meta folks and their LLaMA team lead who spinned up a good models in months.
The only bottle neck i could think of would probably be RLHF data - but given enough money, that's not an issue either.