Based on what @aaron.mbf mentioned. Now that the coretime has just been renewed, we are proceeding with a new proposal that all it does is submit the core autorenewal bit:
0x670003010100b50f03140004000100000712bce7c80513000100000712bce7c8050006010320ca157d043432150f00e707000001680d0600140d01000001009d1f
Preimage hash of:
0xad5298533a86c53f45ebf2fb7cc7f6d0a790b18acc2ce5fcd7f4505415f05b0b
And tested in Chopsticks:
