Since it is the legacy automakers are the ones that also build the heavy duty trucks I think it will be awhile. How much battery power do you need for an Ambulance or a large utility truck. Even a large snowplow truck. Even the electric fire truck has a diesel motor
If any of these companies go into bankruptcy, it will be for the same reasons as when it happened to Chrysler and GM the last time around: mismanagement during a terrible economy coupled with a financial market that doesn't want to write a loan. The transition to EVs will will have little or nothing to do with it.
Meanwhile, the smaller makes are going to get swallowed by the bigger ones. Toyota has been eating Subaru for years. Renault essentially owns Nissan, despite the Japanese government losing their *sugar* over it. Toyota owns a hunk of little tiny baby Mazda. Also Mazda sells more cars than Tesla does.
Oddly phrased question. Which US manufacturers have *not* gone bankrupt at some point? I'll give you a hint, the list is very short and one is Tesla. The number of defunct or bankrupt automakers is fairly lengthy.
Do you mean "which of the currently operating automakers will go bankrupt next?"
The 'Legacy' boys are all 'too big to fail' and have too many investors' money sunk into them for BK to be any factor in the near term.
Fanboys may want to see a dumpster fire, but it'll be a long wait.