Discontinued ??? – is this True

Hi,

I just discovered this plugin and its siblings…
I just installed it today and the first thing displayed is the message(s) stating that this plugin and its siblings will be discontinued and I should switch…
(1) It does not say what the new plugin is (its name) and no further information on the subject.
i.e no info, no pricing, nothing…
What does this mean?
(2) Is it worth installing if no one can tell if it will be around in the next few months?
(3) The Plugin is still asking for Donations?
(4) If you click on the buy options(addons) it goes to a site(s) that says discontinued.

It’s too confusing – Some straight answers (ASAP) would be really helpful if one is to consider investing in this product and the developer(s).