Here are some of my concepts. I've worked on the whole T or Trilogy idea. Simplifying the icon done to its core. Each one of the icons uses a row or column of 3 representing the trilogy. Entry #15 brings in the "T" from the name. Whereas #16 & #17 work on a trilogy of positions and colours.
The logos are 100% vector so will scale well to any size, and works well in full colour, B&W and on coloured backgrounds if needed,
It would be my pleasure to work up any variations so please do say. I look forward to your comments or thoughts.