Synonyms and related words :
along the way, as one goes, brewing, en passant, en route, forthcoming, going on, in embryo, in hand, in mid-progress, in passing, in preparation, in process, in production, in progress, in the oven, in the works, in transit, in transitu, on stream, on the anvil, on the fire, on the road, on the wing, under construction, under revision, under way