If [sentence] is [adjective]

I re-wrote sentences to start Unclear below. Correct if I move “unclear” to end?

From poverty-stricken to government-funded:
on the the diachrony of English noun-participle compounding.
Martin Hilpert, Université de Neuchâtel

There is some initial evidence to suggest that noun-participle compounding are, in
synchronic usage, independent from the English passive. First, not all passive sentences
have counterparts in idiomatic noun-participle compounds, consider for instance
unattested formations such as ?car-transported (The cargo was transported by car) or ?
guest-preferred (The guided tours were preferred by the guests). Second, forms such as
Atlanta-based or work-related do instantiate noun-participle compounding, but these
formations correspond to predicative constructions (The company is based in Atlanta;
The problem is related to work) similar to the German Zustandspassiv, rather than to
canonical passive sentences. What is [U]nclear is if these more problematic examples
represent a recent development or whether they are in fact central members of the
constructional category.

If these more problematic examples
represent a recent development or whether they are in fact central members of the
constructional category, is unclear.

First Language Phonetic Drift During Second Language Acquisition. Charles Bond Chang – ‎2010. p. 171.

Thus, just as there seems to be a “sweet spot” of distance from L1
for inducing assimilatory phonetic drift, so too might there be a “sweet spot” of
distance from L1 for inducing dissimilatory phonetic drift: an L2 sound has to be
distant enough from L1 sounds to be considered a “new” sound, yet not so distant
that there is no L1 sound within its vicinity. What remains [U]nclear is if there is
indeed a degree of distance from L1 that qualifies as too far to cause dissimilation.
Moreover, the SLM’s formulation of the basis for cross-language dissimilation in terms
of segmental categories implies that dissimilation can only occur at the segmental
level, but whether this holds true remains to be seen.

If there is
indeed a degree of distance from L1 that qualifies as too far to cause dissimilation, remains unclear.