next vs succeeding

next and succeeding both are adjectives.

Word	Noun	Adjective	Verb	Adverb
next	No	Yes	No	Yes
succeeding	No	Yes	No	No

As adjectives, next and succeeding are synonyms defined as:

Other synonyms of next include future.

next (adjective)	succeeding (adjective)
nearest in space or position; immediately adjoining without intervening space	coming after or following
(of elected officers) elected but not yet serving	(of elected officers) elected but not yet serving
immediately following in time or order
(of a day of the week) nearest (or nearest but one) after the present moment

next (adverb)	succeeding (adverb)
at the time or occasion immediately following