I realize this was planned since 2018, so I am curious if this is happening. If it is, how will the affect Partner Plus? It could turn paid subs into gift subs and make it harder to achieve 350 as I think this is directed specifically at regulars who are the most likely to do a paid subscription.
Have to admit a few larger gifters would love this in my community but as a streamer, it concerns me a bit if we're aiming for partner plus.

Any update?

Planned for when ? this is marked as Planned in 2018, it's now 2022

YES! THIS!

Yes! This is exactly what I want to be able to do!

As it stands now, someone who already has a subscription cannot be gifted a sub; even of a higher tier.

Piggy-Backing off the idea of upgrading someone from Tier 1 to a higher tier, perhaps be able to extend their "current" sub length at the current tier; Twitch by all rights should know when a sub is going to expire, so the gifted sub could be added to end of the existing one. -"user" just gifted you an additional 3 months on your subscription!".

I like to be very selective when I gift subs, and sometimes it can be difficult to find someone in chat that isn't already a sub or isn't a regular viewer yet. Being able to gift on top of someone's currently in use gift sub would be wonderful.

Scenario: It's a users birthday, and someone gifts a sub. They gift one month. And now others in chat who also wanted to celebrate that persons birthday with a gift can't do so.

Background: When gifting a sub to a single user, the gifter can select if they would like to gift multiple months.

Problem: However, once a user has been gifted a single month, another month cannot be gifted until the current month expires. The "Gift a Sub" option on the context menu shows a dithered button.

Solution: When a user has an active subscription, rather than dithering the "Gift a Sub" button, alter the text to read "Gift an additional month."

Implementation: After selecting this option, let the gifter know how many months the user currently has on their account. As gifting a 13th month to a user who has purchased 12 months, might not be what the gifter had in mind.

I totally agree with this. I would love to be able to give and receive gift subs to people who are still subscribed to a channel and let the gift sub roll over into the next month.

Hey Twitch Feedback!

My name is Vaughn Whiskey and I am a affiliate on Twitch. I love that we can now gift subs to people but as a streamer around the holiday months I want to gift subs to viewers for a Christmas gift. Now the problem is that I have to try and do it when their sub runs out and asking them when their sub is out kind of ruins the surprise.

I would love to see stack-able gifting so say it's half way through their sub i can gift them another month for them ahead of their "due date"

Please consider this, it makes things way too difficult when it comes to giving back to a streamers community.

Vaughn Whiskey