A few thoughts:
You'll also take out Mughal India, since the Mughals were of the Timurid ruling dynasty. Commerce and urban life in Central Asia may do better without the devastation inflicted by Timur, who spoiled half a dozen cities for every Samarkand he adorned. Possibly the Chagatai Khanate remnant in the east succeeds in reconquering its western territories, or perhaps the Golden Horde expands into central Asia. Georgia, which got quite a licking from Timur, might remain a regional power longer, or it might just get clobbered by the unhurt Ottomans earlier than OTL.
The Golden Horde being in better shape in turn delays the rise of Russia, and indeed may seriously butterfly it if they decide their Muscovite servants are getting too big for their britches and require being taken down in favor of some other city. It's likely that some other charismatic Muslim Mongol or Turk harnesses the pre-existing nomadic "forces in place" to build an empire on the fragments of the collapsed Ilkhanate, but odds are they won't be as effective a ball-buster as Timur. OTOH, they might establish a more lasting Iranian-Turanian united state and butterfly away the Safavids.
If the area between the Aral and eastern Anatolia remains disunited through the 1400s, it's possible that the Ottomans, running out of logistical steam with the long run accross the Balkans at some point in the 1400s, either in Hungary or SE Germany, and facing a Mamluk Egypt stronger than it would be in the early 1500s, might move east and lose interest in Europe pushing into an area which had not yet been "innoculated" against their rule by the triumph of Shi'aism (still a minority religion in Iran proper at the time, IIRC).
Bruce