Today we released a brand new open source plugin to display ArcGIS Online vector tile basemaps in Leaflet.
Check it out in action!
http://esri.github.io/esri-leaflet/examples/vector-basemap.html
Not ready for all that WebGL? We have patch releases for Esri Leaflet (2.0.3) and Esri Leaflet Geocoder (2.1.3) too.
Thats a hat-trick!