Complex sentence: Although its design was found to be unsuitable, the T2000 will not be replaced by the MX3000, as the line will remain with overhead wires and none of the new MX3000 trains are equipped with pantographs.
Split into simpler sentences: Although its design was found to be unsuitable, the T2000 will not be replaced by the MX3000, since the line will remain with overhead wires. None of the new MX3000 trains are equipped with pantographs.