Why are there only 3 missions today?

Im a bit dissapointed, beacuse i wanted to get my hands on the new icons that were released to the pbe. I got really happy when i saw that the missions came out today, beacuse tomorrow i will head out for 3 weeks, so i just would have been able to collect them. But after completing them i noticed that the others are not avalible, only icons(and i already had 2 of those) so sadly im not going to be able to complete these missions. Fortunately i was able to get the Targon icon which happens to be my favorite region, but as i said im dissapointed since i wont be able to get the others. Does anyone have any idea why there are only 3 missions today? Or is theres a chance that they will be enabled later today?