No plans for new Opera, but I agree it's a useful feature.
I'm with a somehow impaired eyesight, and do zoom now and then.
Some sites do not have a text size tool, and it's just simpler to zoom in. But then - to read long texts (recently the TOS for a certain service), scrolling left&right EACH DAMN LINE is impossible; so I just opened that in my 11, zoomed in and hit "fit":happy:
Suggestions and feature requests