Find closed form of Wallis's product type $\prod_{n=1}^{\infty}\left(\prod_{k=0}^{m}(n+k)^{{m\choose k}(-1)^k}\right)^{(-1)^n}$ Wallis's product

$${2\over 1}\cdot{2\over 3}\cdot{4\over 3}\cdot{4\over 5}\cdots={\pi\over 2}\tag1$$

Generalised of Wallis's product type

$$\prod_{n=1}^{\infty}\left(\prod_{k=0}^{m}(n+k)^{{m\choose k}(-1)^k}\right)^{(-1)^n}\tag2$$
  Where $m\ge 1$

Setting $m=1$, we get $(1)$
$$\prod_{n=1}^{\infty}\left({n\over n+1}\right)^{(-1)^n}={\pi\over 
2}\tag3$$
and $m=2$ we got 
$$\prod_{n=1}^{\infty}\left(n\cdot{n+2\over (n+1)^2}\right)^{(-1)^n}={\pi^2\over 8}\tag4$$
How can we find the closed form for $(2)$? Conjecture closed form may take the form of $${\pi^{2^{m-1}}\over F(m)}$$

Using  $~\displaystyle \prod\limits_{n=1}^M (x+n) \approx \frac{M!M^x}{\Gamma(x+1)}~$ for large $M$ we get with $~m\geq 1~$ :

$$\prod_{n=1}^{\infty}\left(\prod_{k=0}^{m}(n+k)^{{m\choose k}(-1)^k}\right)^{(-1)^n} = 2^{\delta_{m,1}} \prod\limits_{k=1}^m {\binom {k}{k/2}}^{(-1)^k {\binom m k}}$$
  where $~\delta_{i,j}~$ is the Kronecker Delta, see here 

$\,$
$\displaystyle m:=1 :\hspace{1cm} 2^{\delta_{1,1}} \prod\limits_{k=1}^1 {\binom {k}{k/2}}^{(-1)^k {\binom 1 k}} = 2{\binom {1}{1/2}}^{-1}=\frac{\pi}{2}$
$\displaystyle m:=2 :\hspace{1cm} 2^{\delta_{2,1}} \prod\limits_{k=1}^2 {\binom {k}{k/2}}^{(-1)^k {\binom 2 k}} = {\binom {1}{1/2}}^{-2} {\binom {2}{1}}^{+1} = \frac{\pi^2}{2^3}$
$\displaystyle m:=3 :\hspace{1cm} 2^{\delta_{3,1}} \prod\limits_{k=1}^3 {\binom {k}{k/2}}^{(-1)^k {\binom 3 k}} = {\binom {1}{1/2}}^{-3} {\binom {2}{1}}^{+3} {\binom {3}{3/2}}^{-1} = \frac{3\pi^4}{2^8}$
$\displaystyle m:=4 :\hspace{1cm} 2^{\delta_{4,1}} \prod\limits_{k=1}^4 {\binom {k}{k/2}}^{(-1)^k {\binom 4 k}} = {\binom {1}{1/2}}^{-4} {\binom {2}{1}}^{+6} {\binom {3}{3/2}}^{-4} {\binom {4}{2}}^{+1} = \frac{3^5\pi^8}{2^{21}}$
...
