Complex sentence: However, Romero only stated that these sequels would only happen if "Survival" did well, but with a gross of only $143,191, these sequels are very unlikely to be made even if time permits for Romero.
Split into simpler sentences: However, Romero stated that these sequels would only happen if "Survival" performed well financially. With a gross of only $143,191, these sequels are unlikely to be made even if time permits for Romero.