That is my understanding.
If a second impeachment is part of the plan, then stopping BiteMe's legislative agenda during that time period would be a secondary goal.
One opinion:
FDR defended his precedent-breaking decision to seek a fourth term on several grounds. In late 1944, Roosevelt reflected that while he “hate[d] the fourth term . . . and the third term as well,” he thought he was able to “plead extenuating circumstances!” He believed, he explained, that Americans deserved to have the chance “freely to express themselves every four years.” Unlike some of his contemporaries, Roosevelt claimed, he did not feel the need to cling to power just for the sake of holding power. “I would, quite honestly, have retired to Hyde Park with infinite pleasure in 1941” had it not been for the international crisis. He felt ethically bound to break from tradition in 1940 and, again, in 1944; he described the possible election of his 1940 opponent, Republican Wendell Willkie, as “a rather dangerous experiment,” as he had little foreign policy experience and was not the man to handle an international emergency. By 1944, with America in its third year of the war, FDR considered it his obligation to remain in office until Hitler had been defeated.[3]
http://ap.gilderlehrman.org/history-by-era/world-war-ii/essays/franklin-delano-roosevelt%E2%80%94four-term-president%E2%80%94and-election-1944
Now, one unofficial theory was that Eleanor Roosevelt was the "real president" behind the man, especially in his later years. Some consider her the first female president.
FDR was known to have a mistress on the side and giving Eleanor the power she craved was supposedly his consolation prize to her.
This is a very suspect theory. Take it or leave it.