in ten years, flights from medan to papua ...................(take) less than an hour. simple future jenis apakah yang dipakai ???

In ten years, flights from medan to papua is going to take less than an hour. 
jenis simple future yang dipakai adalah is going to, biasanya digunakan untuk menjelaskan rencana dengan jangka waktu yang pasti. disini jangka waktunya pasti yaitu ten years atau sepuluh tahun. 

in ten years, flights from medan to papua WILL HAVE TAKEN less than an hour.

Future Perfect Tense as the signal words imply that a certain activity happening in the future will finish before the time indicated by the signal words. The signal words for Future Perfect Tense include:by the time, by, in 2015, in two hours's time.