AFAIK there was no serious movement to expel the Bosnian Muslims, who were simply regarded as South Slavs of a different religion:
"With the establishment of the interwar kingdom, the Muslims were relegated, both by the regime and by the socialist opposition, to the position of one branch of the "Yugoslav nation" or even, in the eyes of some Serbs, of confessionally deviant Serbs. Jovo Jaksic, an apologist for the theory of the "tri-named people" ("Serb," "Croat," and "Slovene" being, in this view, alternative names for a single "Yugoslav" people), denied that any differences other than religion differentiated the people of Bosnia-Herzegovina—as if that were not potent enough—and suggested that Muslims be viewed as a fourth "tribe" of the Serbo-Croato-Slovenian nation.. In spite of this assertion, when the first Yugoslav parliament was opened, twenty-two of the twenty-four Muslim deputies from Bosnia declared themselves Croats, and the Yugoslav Muslim Organization, the strongest Muslim party, was tangibly closer to Croats than to Serbs. Later, at the first national conference of the Communist Party of Yugoslavia (November 1940), Mose Pijade told delegates that Bosnian Muslim consciousness was largely religious and not ethnic. This judgment would later receive some corroboration in the wartime split among the Muslims, with many actively supporting the Croatian Ustase, even identifying themselves as "Croats of Muslim faith," and many joining the communist partisans."
https://books.google.com/books?id=ZvMi6paTOlcC&pg=PA161
It's a bit more plausible with the Albanians of Kosovo:
"In 1937, Čubrilović delivered a lecture to the
Serbian Cultural Club in which he outlined possible methods the Yugoslav government could use to coerce
Albanians into leaving Kosovo. Čubrilović argued that the only way to "deal" with the Albanians was to use the "brute force of an organized state". "If we do not settle accounts with them," he opined, "in 20–30 years we shall have to cope with a terrible irredentism."
[17] He was highly critical of government attempts to
colonize parts of Kosovo as he felt they were ineffective.
[18][a] Čubrilović also criticized the government for not having seized the opportunity presented by a 1918–21 revolt among Kosovo Albanians to force them out of the region. He stated that the benefits of the forced expulsion of Albanians outweighed any risk since "a threat to Yugoslav security would be removed". He reasoned: "At a time when Germany can expel tens of thousands of Jews and Russia can shift millions of people from one part of the continent to another, the shifting of a few Albanians will not lead to the outbreak of a world war."
[18] The content of the lecture was preserved in writing, came into the possession of Yugoslavia's military intelligence service and was preserved at the Military Archive in Belgrade.
[21] It was not made public until 1988.
[22] In the ensuing decades, Albanian historians have referred to it as evidence of a plot to evict Kosovo's Albanian population, usually claiming it was written at the request of the Yugoslav General Staff. However, there is no evidence to this effect.
[21] Professor
Sabrina P. Ramet doubts the lecture had much influence on the Yugoslav authorities, who were already long committed to seeing Kosovo Albanians leave the province and emigrate to Turkey."
https://en.wikipedia.org/wiki/Vaso_Čubrilović
There were in fact negotiations between Yugoslavia and Turkey in the 1930's to try to get Turkey to accept Yugoslav Turks and Albanians (*not* Bosnian Muslims) but without much success:
"The Yugoslav government made repeated attempts to initiate talks with Turkey and Albania about their admission of some of Yugoslavia’s Muslim population, mainly Turks and Albanians, and showed readiness to conclude such arrangements and to cover the costs and compensations. In reality, however, most plans failed due to lack of finance. Turkey had her own interests as regards such arrangements. A plan from the mid 1930s for resettling 200,000 Muslim Turks from Yugoslavia to Turkey had never been carried out."
http://www.doiserbia.nb.rs/img/doi/0350-7653/2007/0350-76530738219B.pdf