Would it be that difficult though to have a modified Bayer filter with an RGBI array instead of RGBG? You would have to use different dyes for all pixels, sinc

Would it be that difficult though to have a modified Bayer filter with an RGBI array instead of RGBG? You would have to use different dyes for all pixels, since the currently used ones let IR light pass, but it doesn't sound that difficult to do (since we already have both IR-pass and IR-block filters).