Complex sentence: What happened to the Guylos Empire after that is unclear but it is worth noting that the insignia of the Empire faction from the Neo-Blox line resembles the NJR-era Guylos Logo.
Split into simpler sentences: What happened to the Guylos Empire after that is unclear. It is also worth noting that the insignia of the Empire faction from the Neo-Blox line resembles the NJR-era Guylos Logo.