Redemption changes

The ability to redeem digital sets for physical ones has long been one of the pillars of the Magic Online economy. When the program was first launched in the early 2000s it was designed to make players feel more comfortable with investing into digital cards by providing an escape hatch to the world of paper Magic.

Starting with Kaladesh, the redemption period of a set will begin roughly 30 days after the set's release, up until the start of redemption for the next block set (Amonkhet in this case). Wizards provided this handy graphic to demonstrate the new timeline:

This period is significantly shorter than the old timeline, which guaranteed redemption for the Standard lifetime of each set, with a cut-off date of about one year after rotation. This means the redemption period will be reduced from approximately 2.5 years down to 6 months and small sets like Aether Revolt will barely receive a redemption period of three months

The fun fact is Battle for Zendikar is redeemable for 5 months after Kaladesh is no longer redeemable, and Shadows over Innistrad is redeemable nearly a year after Kaladesh goes off. Shadows over Innistrad will be redeemable for a few months after Amonkhet.

Will people rush to redeem sets and as a result Standard singles will reach new heights?

One is more than certain, once the redemption window closes on the Kaladesh block next spring, prices on Kaladesh cards not seeing very strong Standard play will crash hard.