No, not over time. The generation of the Son, in Trinitarian theology, is precisely eternal, ever in act, never in the past or falling back in that sense, despite the "begotten of the Father before all worlds" of the Creed. That is a figure and has to be, or do you imagine a moment when that took place? That would anyhow be Arianism. Now you may find this weird but it is not provenly self-contradictory (this expression maybe appears to you (or me) pre-Hegelian!). The father is this fathering relation, by the Augustinian-Thomist account, if I can trust myself in this difficult area.

So there are no phases to this generation (itself not free of figure, all the same), as, as you say, Hegel well appreciates, no phases to God or revelation, which God is (Hegel), at all, the beginning is contained in the end and vice versa. This revelation, all the same, is differently suited to people at different cultural levels. This, I find, is the sense of Hegel¡s "true reason world".

No doubt all these positions are finite and will serve their turn in theological discourse down the ages, all the same. This unfortunately can give rise, from the side of organised religious life, to confusion between the true and the opportune, with which philosophy can have, it seems to me, nothing to do. Thus Ontologism, the 19th century version of Hegelianism best known then at Rome, was rejected as "not safe for teaching" and later propositions taken as expressing "ontologisms" , e.g. by Rosmini, were "condemned" up into the 1880s (Giacomo Rinaldi, whose work I admire, accuses me of "unpardonable ignorance" for asserting this but I can give the primary source)..

Stephen Theron.