I am very happy to hear that Zindra will be expanded and that new waterways may be opened along the southern border (please do that). I've made this request before https://feedback.secondlife.com/ldpw/p/add-navigable-regions-or-channels-to-zindra and glad it is being tracked.
However, Most of the available land is held by land barons who are either jacking up prices beyond the reach of most players OR slicing up the sky with sky boxes that are ugly, impact ground level dwellings with shadows, and add load.
It is likely the land barons will gobble up the new land on Zindra exacerbating an already overpriced market. While I understand SL gets their tier each month it would be worth exploring ways in which the new land is available only to users and land barons that are speculating and stacked sky box rentals are prohibited. I am proposing governance somewhere between the strict rules on Bellisaria and the free for all of Mainland. For example,
  1. Land can only be sold for what it was purchased for. If its sold at $1L per SQM, then speculative pricing would dissapear and might have a depressive impact on land pricing elsewhere on Mainland.
  2. Prohibit rentals. This would encourage land owners to use the land they bought to live on, put a business or or some other purpose than slicing it up into bits vertically and horizontally.
  3. After accommodating the residents of Gaeta 1 who might want a parcel on Zindra, allocate some portion of the land to residents as a Linden Home without the strict covenant. Users can choose a 1024 or 2048 parcel as part of thier membership.
  4. If you must allow land barons, then prohibit prims below 1,000m above the ground to reduce the impact on neighbors.
  5. For rentals, charge tier not only by the SQM but the altitude of the highest skybox. If a landlord can make 5x tier or more renting vertical space, why not take a healthy nibble of that revenue. Vertical rentals are lost revenue for LL.
Those are just a few ideas and there are others, but the point is to encourage users living and making a business on the new Zindra land and discourage or prohibit land barons buying up the land causing inflationary land prices which results in abandoned, unused land.