The phrase "a possible timeline" is correct and usable in written English.
You can use it when discussing potential schedules or sequences of events that may occur in the future.
Example: "We need to establish a possible timeline for the project to ensure we meet our deadlines."
Alternatives: "a potential schedule" or "an estimated timeline."
Its research report on Thursday proposed a possible timeline for doing so.
This week Mr Kerry and Mr Khurshid set September as "a possible timeline" for solving the problem, just before another visit to America by Mr Singh.
We discuss how the rumor went from airy tales to something quite solid, including a possible timeline for launch in 2020.
"He will have the injury reviewed at the end of this week after it has settled down, at which point we'll be in a better position to give a possible timeline for a return to play date".
The Labour MP Tom Watson has suggested that Findus's beef lasagne may have been contaminated as far back as August, but the food company said it had only been aware of this possible timeline through a letter dated 2 February from Comigel.
A month later General David Petraeus, the US commander of coalition forces, will present his assessment of the campaign and possible timeline for withdrawal of forces to Barack Obama.
He offered those as possible timelines, but only hypothetically, to make his points that terrorism had rendered the region unstable and that he would support a continued troop presence if warranted.
I don't know if it's true that Edwards' affair started and ended in 2006, but if so, that's actually the most morally unforgivable of possible timelines.
This is the basis of the heritage maps that they present as possible timelines of nodal metastases in each patient.
It represents his most specific timeline yet on a possible transfer of power after the coup.
Various trials using this type of spectrum are underway, with a possible rollout this year — although that launch timeline was previously pegged for late 2013 (so evidently hasn't been considered hugely pressing at this nascent stage).
