Had Hus died in Constance, the differences between the moderate Utraquists and the radical Taborites might not have become as evident as early as they did IOTL, with the Utraquists finally abandoning Hus as he, along with Procopius the shaven (Prokop holý) was increasingly drifting towards the ever more radical taborite camp after his return from Constance. There might thus never have been the Taborite vs. Utraquist civil war there was IOTL, that erupted after the overwhelmingly Utraquist city council of the Old Towne of Prague seemingly did nothing against the Inquisition exhuming Hus' remains 3 years after his death and, after condemning him as a heretic in a macabre show trial reminding many of the Cadaver Synod a good half millenium earlier, had those remains burned and the ash cast into the Vltava river from Charles Bridge.
While this was very often also cited as the cause for the Bohemian civil war, the true reasons were both more complicated and profound. While the Utraquists consisted mainly of the higher and lower landed gentry as well as the partician urban classes, who in this transition period between the late middle ages and the early renaissance were already heavily relying on good relations with peers in other by this time still mostly catholic countries and also had a deeply rooted interest in not upturning the established order guarateeing their privileges too much, the Taborites, consisting mainly of poor peasants, both free and serfs and the lower urban classes, saw in upturning this very order their only real hope for social advancement and did care little about the wider, much less international implications of their actions, an attitude that would come to haunt them and finally contribute to the downfall of their cause, since, while the Utraquists were able to garner support from abroad the Taborites were not.
A death of Jan Hus in Constance might have been able to gloss over those differences at least for some time as it would have galvanised all those early reformed groups under the common banner of a martyred Hus before his increasingly radical positions began to alienate his more moderate supporters. This and the ensuing struggle with the Luxemburg dynasty might also have sparked a czech protonationalism in a way similar to what happened in the Low Countries a good century and a half later