I hope all goes well. Delteria recently did something similar and they have a respectable player count. They hold there own against pc-only servers like Era and Zodiac. I say pc-only because era pc and iera are not currently linked (to my knowledge).
Question tho, why scrap all the levels too? I often suggest against servers starting from scratch if it's not even close to the original server. But only because so much hard work being done to complete something 99% different is about the same as a from the ground up new server.
I do see cross-platform as being a great way to go. Focusing only on iOS, Facebook or Android just doesn't make sense. I don't have the consistent internet access or time to offer to help tho, or I would. I was supposed to be helping out on Delteria but I had to shut my internet off and using my neighbors results in the internet being up for several minutes at a time before crashing
I wish you guys the best of luck and I do like some of the updates you guys have been doing. Keep up the good work.