When new special research comes to Pokémon GO, the tasks will likely be designed a bit differently. That’s what Niantic says.
What is it about? The special research in Pokémon GO are special task series that players can complete. There is also a story to follow. In the end, a special reward awaits, such as the mythical Pokémon Mew. It can only be obtained through this special research, not found in the wild.
In the future, the format in which the special research takes place might change. An employee from Niantic explains that they are still working on the fine-tuning.

Who spoke? Matt Slemon is a Product Manager at Niantic and spoke in an interview with Polygon about the past, present, and future of Pokémon GO.
What did he say? As Polygon reports, changes to the special research are probably planned. It seems that they want to create tasks that players will remember more vividly in the future.
Regarding the special research, Slemon says in the interview:
We are trying to figure out what the right amount of it is. A part of the special research that we released has definitely overwhelmed some of our casual players a bit. In that we simply flooded them with research tasks.
Our intention is to make it so that the storylines are not just checklists. So you’re not just rushing through four or five of them at the same time and not even remembering which task belongs to which special research or why.
What does the statement mean? It sounds like Pokémon GO will conduct special research in the future where the tasks will actually fit the theme. And have more significance.
Perhaps there will be fewer individual tasks in the future, but a greater thematic relevance to the existing tasks. But that remains to be seen.

What do the players say about it? The interview is being actively discussed on Reddit.
A negative aspect of the previous special research is that for some tasks, players had to catch specific species that only appeared in the wild for a short time. User tehstone writes:
I think the big complaint was the requirement to catch or evolve species that are actually particularly rare, but only appeared more frequently at the time of the special research’s release.
Source: Reddit
It definitely created a “hurry up or you’ll have problems” feeling.
As an example, Ditto is also mentioned on Reddit. It was easy to catch at the beginning of the special research when Niantic ensured more Ditto spawns. Who reached the research after the increased spawns probably had to search for Ditto for weeks or months.
What changes would you like to see for the special research in Pokémon GO?
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