As far as I know, the Catechism insists that only two aspects of the Church’s traditional understanding of the creation account are now “symbolic” and not literal (as they had been understood to be for thousands of years) - (1) the “six days” and (2) the creation of Adam (see 337 and 362 below). I suspect these radical changes are no coincidence, for it is the understanding of precisely these two aspects that had to be altered (from literal to symbolic) in order to accommodate the shiny, new, scientifically-correct, evolution creation story … while at the same time conveniently excluding the old, out-dated, scientifcally-incorrect literal creation story.
The remainder of the Church’s traditional teaching creation remains unchanged - so far. I expect there will be attempts to further smooth the way for evolution - such as changing the account of Eve being created from Adam’s rib from literal to symbolic/figurative. Belief in Adam and Eve as real, literal people is already on the “endangered” list. More early chapters of Genesis will understood as “symbolic” - indeed, there already exist many very influential Catholics (evolutionists, of course), who don’t consider the first ELEVEN chapters of Genesis to be literal! And no doubt evolutionists have the prohibition on polygenesis in their sights as well. Whether or not any such evo-enabling, “symbolic” upgrades will be enshrined in the Catechism (along with the two below), only time will tell.
337 - “God himself created the visible world in all its richness, diversity and order. Scripture presents the work of the Creator SYMBOLICALLY as a succession of six days of divine ‘work’ …” (emphasis mine).
362 - "The human person, created in the image of God, is a being at once both corporeal and spiritual. The biblical account expresses this reality in SYMBOLIC LANGUAGE when it affirms that “then the Lord God formed man of dust from the ground, and breathed into his nostrils the breath of life, and man became a living being” (emphasis mine).