I honestly hope SMN gonna lean even more into their supportive abilities and get more defensive/restorative utility. Cause, SMN always was like that, with either summons having utility spells or SMNrs themselves having access to white magic.

FFIII - first summons appears, each summon has a "white" utility spell, that either heals, buffs, or debuffs.
FFIV - before the timeskip, Rydia has access to white magic.
FFV - several summons, such as Golem, Sylph, and Carbuncle, provide defensive utility to the group.
FFVI - although there are no SMN, many espers (Seraph, Lakshmi, Zona Seeker, Unicorn, etc.) provide healing or buffs to the group.
FFVIII - Cerberus and Carbuncle provide party-wide buffs.
FFIX - Carbuncle can provide up to 5 different buffs, while both summoners have access to white magic.
FFX - Yuna is a summoner with access to white magic.
FFXI - every avatar has utility spells that provide buffs, debuffs, or healing. Also, SMN themselves were usually paired with WHM or SCH, and provided support to the group, leaving damage to the pet.

In some games, like III or IX, the split between damage and utility is 50-50, in others - closer to 70-30. But, my point is, that utility was pretty much always a part of SMN identity. So I hope Rez stays and SMN gets even more stuff to support the group.