  In this note, I will review the opportunities offered by the hint of a new
resonance observed at LHC for future e+e- TeV linear collider (LC) projects.
This discussion is mainly influenced by two specific scenarios of physics which
assume either a (pseudo-)scalar or a tensor resonance, but these estimates can
be used in most scenarios. I envisage either a photon collider, which has a
guaranteed signal with the LHC observation, or a standard e+e- collider, more
straightforward to implement. After a detailed study of the heavy graviton
scenario, I conclude that at a TeV LC, high accuracy measurements, including
rare modes, allow to unambiguously establish the origin of this resonance. Also
envisaged in some detail is a radion scenario which illustrates the production
of a scalar. The role of an LC for precision measurements on Higgs and top
couplings is recalled in the context of the Randall Sundrum model.

High Energy Physics - Experiment;High Energy Physics - Phenomenology