Chell’s Legend is an episodic Portal 1 mod that has been in development for almost 3 years. We don’t know much about the plot, but it presumably takes place in the Enrichment Center, there is some sort of side-story focusing on two companion cubes, and Chell is probably the main character.
More importantly, it has preeeeeetty mapping.
They released their first trailer recently. I know, February doesn’t really count as very recent, but bear with me and check this out.
Looking forward to seeing more of Chell’s Legend some time in the near future! Be sure to check out their official blog and ModDB page.