Tortoise is touring this spring.
One of the guys from Scenic has been working on putting something new together and I'm in touch with him; will let you know what it is and when/if music becomes available.
Pajo is still active although I haven't followed much of his music since his brief involvement w/ Tortoise & The For Carnation. Slint periodically reunites, which is cool since they barely played live back in the day.
A band I didn't mention because I'm not sure they really fit here is Lungfish (on hiatus), but their musical architect and guitarist, Asa Osborne, has a wonderful minimalist and rather drone-y, yet very unique project called Zomes. He/they tour and have put out recordings consistently over the last several years. Definitely would appeal to fans of the "post-rock" scene.