First, your notation is nonstandard; when we write $\mathrm{Col}(\kappa,\lambda)$, this typically means the set of partial functions $p : \kappa \to \lambda$ of size $<\kappa$, i.e. reverse of yours. First note the following fact: > (1) If $\kappa$ is regular and $\mathbb P$ is $\kappa$-c.c., then every club subset of $\kappa$ in $V^\mathbb{P}$ contains a club from $V$. To answer, "What is $\mathcal F_{\mathrm{Col}(\omega,\omega_1)}$?": It is just the club filter on $\omega_2$. Since this forcing has size $<\omega_2$, every new club contains a ground model club, so the new club filter is generated by the old. For the next question, we use the following well-known result due to Harvey Friedman (generalized by Stavi and Abraham-Shelah): > (2) If $S \subseteq \omega_1$ is stationary, then the forcing $\mathbb C(S)$ consisting of closed bounded subsets of $S$ ordered by end extension adds a club through $S$ without adding reals. Let $S = S^{\omega_2}_{\omega_1}$, i.e. the ordinals of uncountable cofinality below $\omega_2$. Then $\mathrm{Col}(\omega,\omega_1) * \dot{\mathbb C}(\check S)$ forces $S$ is in the new club filter on $\omega_2^V$. By (1), $S$ remains stationary, so we may apply (2). For the next question, the above argument shows that your ideal $\mathcal I$ is simply the nonstationary ideal on $\omega_2$. I don't know much about forcing without choice, so I'll leave the rest to someone else.