The Time Fantasy series is complete as far as full releases go, though I continue to support it with add-ons and requests on patreon.
Going forward there will be more full expansion packs for the Elements series-- I have a big list of things for character expansions and new tileset biomes. This series also gets additional updates and add-ons on patreon.
You might think of the Elements style as a sequel to the Time Fantasy assets; the character proportions and color palettes are different; but there's overlap in the 16x16 tilebase: recent tile releases will often include variants compatible with Time Fantasy and Time Elements.
Thanks!