Those spells not yet officially brought into 5.5

Has their been any indication when those other spells not yet updated to 5.5 will find their way into the future content. Spells like Shadow blade for instance that were printed in the supplemental everything guide like Xanathar's and Tasha's but haven't been officially reprinted and possibly updated. I was sort of expecting there would be more of those in the upcoming Arcana unleashed. But only a few it seems. 

They have not indicated that they are planning to do that for all the old spells, or when exactly they would be doing it if they were planning to. 

You can take a look at Unearthed Arcana to see the stuff they've released playtest versions of, but these things do not always actually get published and are often significantly changed if they do.

The PHB reprinted dozens and added a few because its purpose is to serve as a singular foundation that various classes and builds within the classes can draw from. Beyond that, there’s not really a need to specifically go back through the remainder and reiterate them unless the devs really want to rework a given spell. They’re all compatible with 2024, as far as I know.

Greetings BryTheOld,

What Wagnarokkr and The_Ace_Of_Rogues stated is correct regarding spells like Shadow Blade.

The spell still works and can be used in any 5e or 5.5e campaign/adventure/one-shot.

As far as updating older spells, WotC has been updating previous edition spells as a part of their Drops offerings, so maybe some older 5e spells that have not been updated yet might eventually be added to this list.

Additionally, the new Arcana Unleashed and Arcana Unleashed: Deadfall come out today on the 'early access' program, and we know there is a decent amount of spell offerings in those books, so maybe some older 5e that have not been updated yet will be in there.

Cheers!