Does Collector for ArcGIS reproject on the fly?
I have a local TPK that is in WGS1984 Web Mercator Auxilliary Sphere and vector data that is in State Plane (Florida North), all which will be used in an offline capacity using Collector for ArcGIS.
I am trying to prevent the need to reproject the large amount of data if I don't have to.
I would think that it would reproject on the fly since you are likely going to be loading the data together into ArcMap and then publishing it to AGOL in order to use it in collector. Most of my web maps I make are in a local, custom coordinate system. When I publish these maps/layers to AGOL, they come in just fine with AGOL's built-in basemaps (which are all in WGS84 Web Mercator, like your TPK).
I should have been more clear. I am simply using information from ArcGIS for Server and putting it back into the same server. We are trying to avoid ArcGIS Online.