Well this is a common idea yet a huge mistake as per the nowadays' economy rules.
If Kodak were to go away, only a tiny fraction of the people who used to shoot Kodak films would switch to Fuji and Ilford, while the main part of them would either definitely switch to digital or cease to take photos.
The demise of a competitor is never some good news for other manufacturers because it recesses the market.
Same goes with that darn film hoarding habit. Hoarding film would be the best thing to do if the hoarders purpose were to see all films manufacturers go away.
Bottom line for the OP : Agfa has gone away already.
Re. Kodak my main concern would be with the D76 although I know there are other good developers and the possibility to cook my own D76 at home.