I have just learned Unicode has had an Alchemical block for years, including symbols for Quintessence, Air, Fire, Earth, Water, Aquafortis, Aqua Regia, Aqua Regia-2 (alternate), Aqua Vitae (and alternate -2), Vinegar (+ -2, -3), Sulfur, Philosopher's Sulfur, Black Sulfur, Mercury Sublimate (+ -2, -3), Cinnabar, and more.
www.compart.com/en/unicode/block/U+1F700Unicode 16 will be released in September 2024, and will include at least the following:
New Blocks
Todhri (U+105C0-U+105FF), containing 52 characters will be added.
Garay (U+10D40-U+10D8F), containing 69 characters will be added.
Tulu-Tigalari (U+11380-U+113FF), containing 80 characters will be added.
Myanmar Extended-C (U+116D0-U+116FF), containing 20 characters will be added.
Sunuwar (U+11BC0-U+11BFF), containing 44 characters will be added.
Egyptian Hieroglyphs Extended-A (U+13460-U+143FF), containing 3994 characters will be added.
Gurung Khema (U+16100-U+1613F), containing 58 characters will be added.
Kirat Rai (U+16D40-U+16D7F), containing 58 characters will be added.
Symbols for Legacy Computing Supplement (U+1CC00-U+1CEBF), containing 695 characters will be added.
Ol Onal (U+1E5D0-U+1E5FF), containing 44 characters will be added.
Extended Blocks
A combining diacritical mark for Jawi (total 1 character) will be added to Arabic Extended-B. (U+0897)
An archaic ligature Shrii (total 1 character) will be added to Telugu. (U+0C5C)
An archaic ligature Shrii (total 1 character) will be added to Kannada. (U+0CDC)
Inverted letters and a punctuation mark (total 3 characters) will be added to Balinese. (U+1B4E-U+1B4F and U+1B7F)
A letter Tje (total 2 characters) will be added to Cyrillic Extended-C. (U+1C89-U+1C8A)
Legacy computing symbols for Delete (total 3 characters) will be added to Control Pictures. (U+2427-U+2429)
CJK strokes Hzxg and Szp (total 2 characters) will be added to CJK Strokes. (U+31E4-U+31E5)
A capital Rams Horn, an S with Diagonal Stroke, Lamda Letters, and letters for Wakashan and Salishan Languages (total 6 characters) will be added to Latin Extended-D. (U+A7CB-U+A7CD, U+A7DA-U+A7DC)
A combining Alef overlay and letters with two dots vertically below (total 4 characters) will be added to Arabic Extended-C. (U+10EC2-U+10EC4 and U+10EFC)
A sign Nukta (total 1 character) will be added to Kawi. (U+11F5A)
A blank character (total 1 character) will be added to Khitan Small Script. (U+18CFF)
A rightwards arrow with hook, and arrows for legacy computing and arrows for Egyptology (total 12 characters) will be added to Supplemental Arrows-C. (U+1F8B2-U+1F8BB, U+1F8C0-U+1F8C1)
A Harp, Shovel, Leafless Tree, Fingerprint, Root Vegetable, Splatter, and Face with Bags Under Eyes (total 7 characters) will be added to Symbols and Pictographs Extended-A. (U+1FA89, U+1FA8F, U+1FABE, U+1FAC6, U+1FADC, U+1FADF, and U+1FAE9) [emojis]
Graphic shapes for legacy computing and an alarm bell symbol (total 38 characters) will be added to Symbols for Legacy Computing. (U+1FBCB-U+1FBEF and U+1FBFA)