Some new summoners spells?

We all grieve the loss of some of the summoner spells. {{summoner:2}} and revive. But maybe we can add some new ones. Here are just a few ideas I came up with.

Foresight: Dashes a fixed distance leaving a mark where you dashed from. In 4 seconds you to reappear at the mark (think LeBlanc). (even through cc and self immobilization) During the 4 seconds u gain 50% bonus move speed. This could cause you to scout objectives or even some cool out play. CD would be shorter that flash. maybe 260 sec.

Rewind: Creates a pulse around you that lowers all cc effects by 30% for 2 sec. Ever feel helpless when your whole team is chained cc'd? this could help teams that are very susceptible to cc. Such as poke comps. CD About 300 sec.

Immortality: Makes you immune to everything (ally or enemy) for 1 sec. Good for dives, fight, and trolling bards. CD longer than barrier. Maybe 260 sec.

Conceal: Makes target champ invisible for 1.5 sec and give 25% move speed for 5 sec. Good for outplay or if u were caught and have no mobility. CD 180 sec.

Up Vote if you think some of these should be looked at. Maybe a Riotear will look. Thanks. (: